Ohm's law defines the relationship between voltage, current, and resistance in a circuit. It states that current is directly proportional to voltage and inversely proportional to resistance. The amount of current, voltage, or resistance in a circuit can be calculated if two of the three values are known using the equation: I = V/R
Some key points about Ohm's law include:
- Voltage is measured in volts (V), current in amps (A), and resistance in ohms (Ω)
- Ohm's law can be rearranged to solve for any of the three circuit variables
- Examples are provided to demonstrate calculating unknown values given two known values
Discusses Ohm's Law and current electricity and related to energy transfer in circuits.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
this ppt was created by me and i hope it helps to all of you out there. peace
objective : school projects
personal reference
teachers reference
i know its a bit lengthy but im 100% sure it will be helpful
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Coil Heaters – Technical Specifications, Types of Coil Heaters and their Appl...Deven Singh
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Detailed description of various heaters used in industries with applications and features. Tempsens heaters are highly durable and provide effective solutions in industrial needs.
Discusses Ohm's Law and current electricity and related to energy transfer in circuits.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
this ppt was created by me and i hope it helps to all of you out there. peace
objective : school projects
personal reference
teachers reference
i know its a bit lengthy but im 100% sure it will be helpful
plz leave a like
thxs
Coil Heaters – Technical Specifications, Types of Coil Heaters and their Appl...Deven Singh
Types of Coil Heaters, Applications of Coil Heater, Coil Heaters in Hot Runner Systems, Performance of Coil Heaters, Standard Coil Heater Configuration, Mini Coil Heater, Maxi Coil Heater.
Detailed description of various heaters used in industries with applications and features. Tempsens heaters are highly durable and provide effective solutions in industrial needs.
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Different types of MI Cables are MI thermocouple cables, MI RTD cables, MI Power cables, MI Heating cables, triaxial cables, coaxial cables and SPNDS.
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Transmission and distribution line design finalBhanu Poudyal
Transmission Line designed on basis of data available for a given Hydropower system.
Looking this document you can yourself design the Transmission Line system.
Since the loads having the trends towards growing density. This requires the better appearance, rugged construction, greater service reliability and increased safety. An underground cable essentially consists of one or more conductors covered with suitable insulation and surrounded by a protecting cover. The interference from external disturbances like storms, lightening, ice, trees etc. should be reduced to achieve trouble free service. The cables may be buried directly in the ground, or may be installed in ducts buried in the ground.
Distribution System Voltage Drop and Power Loss CalculationAmeen San
Distribution System Voltage Drop and Power Loss
Calculation
Comparison of Overhead Versus Underground System
Power Loss Calculation,Voltage Drop Calculation
In this update of his past presentations on Mobile Eating the World -- delivered most recently at The Guardian's Changing Media Summit -- a16z’s Benedict Evans takes us through how technology is universal through mobile. How mobile is not a subset of the internet anymore. And how mobile (and accompanying trends of cloud and AI) is also driving new productivity tools.
In fact, mobile -- which encompasses everything from drones to cars -- is everything.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
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Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
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UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
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2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
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Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
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https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
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We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
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Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
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- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
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https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
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- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
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Ohms Law
1. Ohm's law magic triangle
Ohms law,
defines the relationship between voltage, current and
resistance.
The amount of current in a circuit in directly
proportional to the amount of voltage applied and
inversely proportional to the amount of resistance.
Expressed mathematically.
By : Sundas
Shabbir
2. Ohm’s LawOhm’s Law
WhereWhere:: I = current (amperes, A)I = current (amperes, A)
E = voltage (volts, V)E = voltage (volts, V)
R = resistance (ohms,R = resistance (ohms,
ΩΩ))
R
E
I =
4. Voltage measured in volts, symbolized by
the letters "E" or "V".
Current measured in amps, symbolized by
the letter "I".
Resistance measured in ohms, symbolized
by the letter "R".
5.
6. If you know E and I, and wish to determine R, just eliminate R from
the picture and see what's left:
7. If you know E and R, and wish to determine I, eliminate I and see
what's left:
8. if you know I and R, and wish to determine E, eliminate E and see
what's left:
9. Let's see how these equations might work to help us analyze
simple circuits:
If we know the values of any two of the three
quantities (voltage, current, and resistance) in
this circuit, we can use Ohm's Law to determine
the third.
10. calculate the amount of current (I)calculate the amount of current (I) in a circuit, given values
of voltage (E) and resistance (R):
11. calculate the amount of resistance (R) in a circuit, given values of
voltage (E) and current (I):
12. calculate the amount of voltage supplied by a battery, given values of
current (I) and resistance (R):
13. • Example #1Example #1
• Find the current of an electrical circuit thatFind the current of an electrical circuit that
has resistance of 50 Ohms and voltagehas resistance of 50 Ohms and voltage
supply of 5 Volts.supply of 5 Volts.
• Solution:Solution:
• VV = 5V = 5V
• RR = 50Ω = 50Ω
• II = = V / RV / R = 5V / 50Ω = 0.1A = 100mA = 5V / 50Ω = 0.1A = 100mA
14. • Example #2Example #2
• Find the resistance of an electrical circuitFind the resistance of an electrical circuit
that has voltage supply of 10 Volts andthat has voltage supply of 10 Volts and
current of 5mA.current of 5mA.
• Solution:Solution:
• VV = 10V = 10V
• II = 5mA = 0.005A = 5mA = 0.005A
• RR = = V / IV / I = 10V / 0.005A = 2000Ω = 2kΩ = 10V / 0.005A = 2000Ω = 2kΩ
15. Electric PowerElectric Power
The unit of electric power is the watt (W).one watt of power equals theThe unit of electric power is the watt (W).one watt of power equals the
work done in one second by one volt of potential difference in movingwork done in one second by one volt of potential difference in moving
one coulomb of charge.one coulomb of charge.
Power is an indication of how much work (the conversionPower is an indication of how much work (the conversion
of energy from one form to another) can be done in aof energy from one form to another) can be done in a
specific amount of time; that is, aspecific amount of time; that is, a raterate of doing work.of doing work.
Power in watt = volt x amperes.Power in watt = volt x amperes.
P = V x I ,I = P/ V , V = P / IP = V x I ,I = P/ V , V = P / I
t
W
P =second/joule1(W)Watt1 =
16. Example of powerExample of power
Energy (Energy (WW) lost or gained by any system) lost or gained by any system
is determined by:is determined by:
W =W = PtPt
Since power is measured in watts (orSince power is measured in watts (or
joules per second) and time in seconds,joules per second) and time in seconds,
the unit of energy is thethe unit of energy is the wattsecondwattsecond (Ws)(Ws)
oror joulejoule (J)(J)
27. • Electric power definitionElectric power definition
• The electric power P is equal to the energyThe electric power P is equal to the energy
consumption E divided by the consumptionconsumption E divided by the consumption
time t:time t:
• Watt definitionWatt definition
• Watt is the unit of Watt is the unit of powerpower (symbol: W). (symbol: W).
• The watt unit is named after James Watt,The watt unit is named after James Watt,
the inventor of the steam engine.the inventor of the steam engine.
• One watt is defined as the energyOne watt is defined as the energy
consumption rate of one joule per second.consumption rate of one joule per second.
28. • 1W = 1J / 1s1W = 1J / 1s
• One watt is also defined as the currentOne watt is also defined as the current
flow of one ampere with voltage of oneflow of one ampere with voltage of one
volt.volt.
• 1W = 1V × 1A1W = 1V × 1A
• P is the electric power in watt (W).P is the electric power in watt (W).
• E is the energy consumption in joule (J).E is the energy consumption in joule (J).
• t is the time in seconds (s).t is the time in seconds (s).
29. • ExampleExample
• Find the electric power of an electricalFind the electric power of an electrical
circuit that consumes 120 joules for 20circuit that consumes 120 joules for 20
seconds.seconds.
• Solution:Solution:
• EE = 120J = 120J
• tt = 20s = 20s
• PP = = EE / / tt = 120J / 20s = 6W = 120J / 20s = 6W
30. • Electric power calculationElectric power calculation
• The power formula can be used in three ways:The power formula can be used in three ways:
• P= v x I OR P =IP= v x I OR P =I22
x R OR Px R OR P
= V= V22
/ R/ R
• P is the electric power in watt (W).P is the electric power in watt (W).
• V is the voltage in volts (V).V is the voltage in volts (V).
• I is the current in amps (A).I is the current in amps (A).
• R is the resistance in ohms (ΩR is the resistance in ohms (Ω
• I= P/VI= P/V
• V= P/IV= P/I
31. • Example 1Example 1: A toaster takes 10 A from the: A toaster takes 10 A from the
120v power line. How much power is120v power line. How much power is
used ?used ?
• Ans : P=V x I = 120v x 10 AAns : P=V x I = 120v x 10 A
• P=1200WP=1200W
• Exam 2Exam 2: how much current flows in the: how much current flows in the
filament of a 300 w bulb connected to thefilament of a 300 w bulb connected to the
120v power line?120v power line?
• Ans : I=P / V = 300w/120vAns : I=P / V = 300w/120v
• I= 2.5 AI= 2.5 A
32. • Multiple Units:Multiple Units:
• The basic units –ampere ,volt and ohmThe basic units –ampere ,volt and ohm
practical values in most electric power circuits,practical values in most electric power circuits,
but in many electronics application these unitsbut in many electronics application these units
are either too small or too big. Such as 2000kare either too small or too big. Such as 2000k
ohm resister value or 2000 v and 5 mA .ohm resister value or 2000 v and 5 mA .
• Example1: the I of 8 mA flows through a 5 kExample1: the I of 8 mA flows through a 5 k
ohms R. how much is the IR Voltage:ohms R. how much is the IR Voltage:
• Answer:Answer: V= IR 8V= IR 8 x10x10-3-3
x 5 xx 5 x101033
= 8 x 5= 8 x 5
• V=40 vV=40 v
33. • Example 2: How much current is produced by 60 vExample 2: How much current is produced by 60 v
across 12k ohms ?across 12k ohms ?
Answer : I = V/R 60/12 x 10Answer : I = V/R 60/12 x 1033
I = 5 x 10I = 5 x 1033
=5 mA=5 mA
• Test point Question?,Test point Question?, 200w , 0.83A 1.8kw200w , 0.83A 1.8kw,,
1 An electric heater takes 15 A from the 120 V power1 An electric heater takes 15 A from the 120 V power
line .Calculate the Amount of power used.line .Calculate the Amount of power used.
2 How much is the load current for 100 W bulb2 How much is the load current for 100 W bulb
connected to the 120 V power line?connected to the 120 V power line?
3 How many watts is the power of 200 J/S equal to?3 How many watts is the power of 200 J/S equal to?
34. • Voltage DividerVoltage Divider
• Voltage divider rule finds the voltage overVoltage divider rule finds the voltage over
a load in electrical circuit, when the loadsa load in electrical circuit, when the loads
are connected in series.are connected in series.
• Voltage divider rule for DC circuitVoltage divider rule for DC circuit
• Voltage divider calculatorVoltage divider calculator
• Voltage divider rule for DC circuitVoltage divider rule for DC circuit
35. For a DC circuit with constant
voltage source VT
and resistors in
series, the voltage drop Vi
in
resistor Ri
is given by the formula:
36. • VVi - voltage drop in resistor Ri in volts [V].i - voltage drop in resistor Ri in volts [V].
• VTVT - the equivalent voltage source or - the equivalent voltage source or
voltage drop in volts [V].voltage drop in volts [V].
• RRi - resistance of resistor i - resistance of resistor RRi in ohms [Ω].i in ohms [Ω].
• RR1 - resistance of resistor 1 - resistance of resistor RR1 in ohms [Ω].1 in ohms [Ω].
• RR2 - resistance of resistor 2 - resistance of resistor RR2 in ohms [Ω].2 in ohms [Ω].
• RR3 - resistance of resistor 3 - resistance of resistor RR3 in ohms [Ω].3 in ohms [Ω].
37. Example1.
Voltage source of VT
=30V is connected to
resistors in series, R1
=30Ω, R2
=40Ω.
Find the voltage drop on resistor R2
?
V2
= VT
× R2
/ (R1
+R2
) = 30V × 40Ω /
(30Ω+40Ω) = 17.14V
38. • Example2.Example2.
• Voltage source of VT=100V is connected toVoltage source of VT=100V is connected to
resistors in series, R1=50kΩ, R2=30kΩ, R3=20kresistors in series, R1=50kΩ, R2=30kΩ, R3=20k
Ω.Ω.
• Find the voltage drop on resistor R1,R2,R3.Find the voltage drop on resistor R1,R2,R3.
39. V3 Fine R3 volt drop
V3=R3/RT x VT= 20/100 X 200 V
V3=40 V
V2 Fine R2 volt drop
V2=R2/RT x VT= 30/100 X 200 V
V2=60 V
V1 Fine R1 volt drop
V1=R1/RT x VT= 50/100 X 200 V
V1=100 V.
The sum of V1,V2,V3 in series is 100+60+40=200v which
is equal to VT
40. Method of IR Drops:
V1=I x R1 =2mA x 50 kΩ= 100 v.
V2=I x R2 =2mA x 30 kΩ= 60 v.
V3=I x R3 =22mA x 20 kΩ= 40 v.
42. voltage at tap point C.
vc=R4/RT X VT
=1 kΩ /20 kΩ X 24V
VC= 1.2 V.
Voltage at tap pint B.
VB=R3+R4/RT x VT
=1.5 kΩ +1 kΩ / 20 kΩ x 24v
VB= 3V.
Voltage at tap pint A.
VA=R2+R3+R4/RT x VT
=7.5kΩ +1.5 kΩ +1 kΩ / 20 kΩ x
24v
VA= 12.6V.
43. Current Divider with two parallel
resistances.
It is often necessary to find the individual
branch currents in a bank from the
resistances and IT , but without knowing the
voltage across the bank this problem can
be solved by using the fact that currents
divide inversely as the branch resistances.
such as show in example:
44. Current divider with two branch resistances each
branch I is inversely proportional to its R. the
small R has more I.
Calculation: I1 =R2/R1+R2 x IT
I1 = 4/2+4 x30
I1 = 20 A
Calculation: for other branch I2 =R1/R1+R2 x IT
I2 = 2/2+4 =30
I2 = 10 A
Editor's Notes
Put the eq 4.2 – 4.4 on slide, I would like to arrange them one they have been inserted so that they make sense.