Verification of kirchoff current and voltage laws
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This document describes an experiment to verify Kirchhoff's current law (KCL) and voltage law (KVL) in electrical circuits. It provides the circuit diagrams and component values used. For KCL, the total current measured equals the sum of individual branch currents. For KVL, the voltages around loops add up to the supplied voltage. Procedures are given to set up the circuits and measure voltages and currents to record in a table, in order to verify KCL and KVL.
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Circuit lab 6 kirchoff’s current law (kcl)@taj
Circuit lab 6 kirchoff’s current law (kcl)@taj
.
This lecture is from my class lectures in IIT-JU.
.
Find me:
Website: https://www.tajimiitju.blogspot.com
Linked in: https://www.linkedin.com/in/tajimiitju
Researchgate: https://www.researchgate.net/profile/Tajim_Md_Niamat_Ullah_Akhund
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The document describes an experiment to verify Kirchhoff's Voltage Law (KVL) using a circuit with resistors and a power supply. The experiment involves measuring voltages and currents at different resistor values and comparing the results to theoretical calculations based on KVL. Small differences between measured and calculated values are observed, which are attributed to measurement errors. The results confirm that KVL accurately describes the voltage relationships in the circuit.
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Verification of Thevenin’s Theorem. lab report
1) The document describes an experiment to verify Thevenin's theorem, which states that a linear two-terminal circuit can be represented by an equivalent circuit with a voltage source Vth and resistor Rth.
2) The experiment used a DC power supply, resistors, wires, a voltmeter, and ammeter to construct the circuit and measure voltages and currents.
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Circuit lab 6 kirchoff’s current law (kcl)@taj
Circuit lab 6 kirchoff’s current law (kcl)@taj
.
This lecture is from my class lectures in IIT-JU.
.
Find me:
Website: https://www.tajimiitju.blogspot.com
Linked in: https://www.linkedin.com/in/tajimiitju
Researchgate: https://www.researchgate.net/profile/Tajim_Md_Niamat_Ullah_Akhund
Youtube: https://www.youtube.com/tajimiitju?sub_confirmation=1
Slideshare: https://www.slideshare.net/TajimMdNiamatUllahAk
Facebook: https://www.facebook.com/tajim.mohammad
Gitlab: https://gitlab.com/users/tajimiitju
Google+: plus.google.com/+tajimiitju
Email: tajim.mohammad.3@gmail.com
Twitter: https://twitter.com/Tajim53
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1. The Kelvin bridge is a modified Wheatstone bridge used to accurately measure low resistances. It accounts for contact resistance by using four-terminal connections.
2. In a Kelvin bridge, the unknown resistance is connected between two potential terminals to directly measure its value, independent of contact resistance at the current terminals.
3. The bridge balances when the galvanometer is connected to a point between the potential terminals that divides the lead resistance into two equal parts, nullifying its effect on the measurement.
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1) The document describes an experiment to verify Thevenin's theorem, which states that a linear two-terminal circuit can be represented by an equivalent circuit with a voltage source Vth and resistor Rth.
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3) Calculations showed that Vth = 3.4V, Rth = 113Ω, Io = 10mA, IL' = 10.2mA with an error of 1.96% between the actual and equivalent currents, verifying Thevenin's theorem.
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1. This document describes an experiment to identify resistor color codes and verify Ohm's Law. It includes objectives, equipment, procedures, and questions.
2. The first part explains how to determine a resistor's value and tolerance from its color bands. Tables list the color codes used in 4-band and 5-band resistors.
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Find me:
Website: https://www.tajimiitju.blogspot.com
Linked in: https://www.linkedin.com/in/tajimiitju
Researchgate: https://www.researchgate.net/profile/Tajim_Md_Niamat_Ullah_Akhund
Youtube: https://www.youtube.com/tajimiitju?sub_confirmation=1
Slideshare: https://www.slideshare.net/TajimMdNiamatUllahAk
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Google+: plus.google.com/+tajimiitju
Email: tajim.mohammad.3@gmail.com
Twitter: https://twitter.com/Tajim53
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Circuit lab 8 verification of thevenin's theorem@taj
Circuit lab 8 verification of thevenin's theorem@taj
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This lecture is from my class lectures in IIT-JU.
.
Find me:
Website: https://www.tajimiitju.blogspot.com
Linked in: https://www.linkedin.com/in/tajimiitju
Researchgate: https://www.researchgate.net/profile/Tajim_Md_Niamat_Ullah_Akhund
Youtube: https://www.youtube.com/tajimiitju?sub_confirmation=1
Slideshare: https://www.slideshare.net/TajimMdNiamatUllahAk
Facebook: https://www.facebook.com/tajim.mohammad
Gitlab: https://gitlab.com/users/tajimiitju
Google+: plus.google.com/+tajimiitju
Email: tajim.mohammad.3@gmail.com
Twitter: https://twitter.com/Tajim53
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Circuit lab 5 kirchoff’s voltage law (kvl)@taj
.
This lecture is from my class lectures in IIT-JU.
.
Find me:
Website: https://www.tajimiitju.blogspot.com
Linked in: https://www.linkedin.com/in/tajimiitju
Researchgate: https://www.researchgate.net/profile/Tajim_Md_Niamat_Ullah_Akhund
Youtube: https://www.youtube.com/tajimiitju?sub_confirmation=1
Slideshare: https://www.slideshare.net/TajimMdNiamatUllahAk
Facebook: https://www.facebook.com/tajim.mohammad
Gitlab: https://gitlab.com/users/tajimiitju
Google+: plus.google.com/+tajimiitju
Email: tajim.mohammad.3@gmail.com
Twitter: https://twitter.com/Tajim53
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Circuit lab 8 verification of thevenin's theorem@taj
Circuit lab 8 verification of thevenin's theorem@taj
.
This lecture is from my class lectures in IIT-JU.
.
Find me:
Website: https://www.tajimiitju.blogspot.com
Linked in: https://www.linkedin.com/in/tajimiitju
Researchgate: https://www.researchgate.net/profile/Tajim_Md_Niamat_Ullah_Akhund
Youtube: https://www.youtube.com/tajimiitju?sub_confirmation=1
Slideshare: https://www.slideshare.net/TajimMdNiamatUllahAk
Facebook: https://www.facebook.com/tajim.mohammad
Gitlab: https://gitlab.com/users/tajimiitju
Google+: plus.google.com/+tajimiitju
Email: tajim.mohammad.3@gmail.com
Twitter: https://twitter.com/Tajim53
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Kirchhoff's laws describe how current and voltage behave in electrical circuits. The two laws are:
1. Kirchhoff's Current Law (KCL) states that the total current entering a node in a circuit equals the total current leaving it, expressing the conservation of electric charge.
2. Kirchhoff's Voltage Law (KVL) states that the sum of the voltages in any closed loop in a circuit is equal to zero, expressing the conservation of energy.
The laws were first described by German physicist Gustav Kirchhoff in 1845 and are foundational to circuit theory. They allow analysis of currents and voltages in circuits.
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- Z parameters define the input and transfer impedances between the two ports.
- Y parameters define the input and transfer admittances between the two ports.
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- Hybrid parameters also define relationships between voltages and currents at the two ports.
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- 1. KCL AND KVL DEEE-EMS LAB SAI SPURTHI INSTITUE TECHNOLOGY- B.GANGARAM VERIFICATION OF KIRCHOFF CURRENT AND VOLTAGE LAWS AIM: To verify Kirchhoff’s current law and voltage law. NAME OF THE APPARATUS; S.No. Name of the apparatus Range Type Quantity 1 Ammeter 0-100mA 1 No. 2 Ammeter 0-500mA 1 No. 3 Digital multimeter. 1 No. 4 Resistors 50Ω, 100Ω, 0.5Watt 1 No. 5 DC regulated power supply 1 No. 6 Connecting Wires CIRCUIT DIAGRAM Kirchoff’s current law(KCL) Circuit diagram for KCL Equivalent resistance of resistors in parallel 1/R1= 1/R1 + 1/R2 R1 = 50Ω, R2= 100Ω So 1/R1=1/50 + 1/100 R=33.33 ohm I=5/33.33ohm=0.15=150mA With a 5V power supply,V=I R the total current in the circuit is: I=v/R =5/33.33ohm =150mA The individual currents can also be found using I= V/R, the voltage across each resistor is 5V,so I1=5/50=100mA I2=5/100=50mA Note that the currents add together to 150mA,the total current
- 2. KCL AND KVL DEEE-EMS LAB SAI SPURTHI INSTITUE TECHNOLOGY- B.GANGARAM Kirchhoff’s voltage law (KVL): Circuit diagram for KVL A series circuit is shown in the diagram above. The current flows through each resistor in turn. If the value of the two resistors are: R1 = 50Ω, R2= 100Ω, R= R1 + R2 R=50+100 R=150Ω With a 5V power supply, V = I R the total current in the circuit is: I = V / R = 5/150Ω = 33.33Ma. The current through each resistor would be 33.33Ma. V1= I*R1=33.33*50= 1.666V V2= I*R2=33.33*100= 3.333V Note That The voltage added together to 5V,the total voltage range 5V PROCEDURE: 1. Switch ON the DC regulated power supply and set the voltage 5V. 2. Now switch OFF the DC regulated power supply and arrange the apparatus as per the circuit diagram with the help connecting wires one after another. 3. While connecting analogue meters make sure correct polarities. 4. Now switch ON the DC regulated power supply and measure the total current I1 & I2 flowing through R2 & R2 with ammeter and voltage across R2 with the help of digital multimeter for KCL circuit. 5. For KVL circuit measure voltage V1& V2 across R1 & R2, with the help of digital multimeter and current with help of ammeter. 6. Note down the observations of ammeter and digital multimeter readings in the tabular form
- 3. KCL AND KVL DEEE-EMS LAB SAI SPURTHI INSTITUE TECHNOLOGY- B.GANGARAM TABULAR FORM: S.No. Parameter Theoretical Practical 1 KVL Circuit V1= V2= V= I= V1= V2= V= I= 2 KCL Circuit V= I1= I2= I= V= I1= I2= I= RESULT: