Parallel and Series Circuits.pptx
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This lesson covers parallel and series circuits. A series circuit has one path for current to flow and the same current passes through each component. In a parallel circuit, there are multiple paths for current and the total current is the sum of the branch currents. The document also discusses electricity in homes, including how alternating current works and safety devices like fuses and circuit breakers that prevent overloads. Key terms defined include joules, watts, kilowatt-hours, and equations for power.
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The document defines basic concepts of electricity including how electrons flow in conductors to create currents, and defines voltage and current. It explains how voltage, current, and resistance are related by Ohm's law and how to measure these quantities using a multimeter. Various circuit components such as LEDs, resistors, capacitors, and breadboards are introduced along with exercises to apply concepts of series and parallel circuits.
Electricity class with additional info
This document provides an overview of electricity and electric circuits. It defines key terms like current, voltage, resistance and discusses concepts such as series and parallel circuits. The three main points covered are:
1. It defines electricity as a form of energy involving the flow of electrons in a circuit. Current is defined as the flow of electric charge.
2. It explains how circuits work and the role of components like batteries, wires, switches and resistors. Resistance opposes the flow of current.
3. It introduces common circuit types like series and parallel and how resistance is calculated and changes between the two circuit arrangements. Measurement units like volts and ohms are also defined.
ELS22 Basic Circuit
This document provides information about building basic circuits, including definitions of key concepts like voltage, current, and resistance. It explains that a basic circuit consists of a power source, circuit protection device, control device, load, and wires connecting the components. Ohm's Law and how voltage, current, and resistance are related in series and parallel circuits are also summarized. Key aspects of using relays in circuits like the control and power/load circuits are defined.
Ch 18 electricity
The document discusses electricity, including what electricity is, how electric circuits work, different circuit components like batteries, switches, resistors, and how to draw circuit diagrams. It explains key concepts such as current, voltage, resistance, and the differences between series and parallel circuits. Examples are provided to illustrate these concepts and how circuits with different components can be arranged.
Electric current and circuit
This document discusses electrical circuits and their components. It begins by defining key terms like voltage, current, and resistance. Voltage is generated by batteries, generators, or solar cells and creates a difference in electric potential that causes electric current to flow. Current is the flow of electric charge, specifically electrons, measured in amps. Resistance opposes the flow of current and converts electrical energy to heat. Ohm's Law defines the relationship between voltage, current, and resistance in a circuit. The document then explains series and parallel circuits. In a series circuit there is only one path for current, while in parallel circuits there are multiple branches. It concludes by comparing the key differences between series and parallel circuits.
Intro_ACKT (1).ppt
This document provides information about basic electrical circuits. It defines key concepts like voltage, current, resistance, and Ohm's Law. It explains how voltage provides the "push" of electricity, resistance creates friction, and current is the flow of electrons. Circuits can be connected in series, with one path, or parallel, with multiple paths. The brightness of bulbs in parallel circuits does not change if one bulb is removed. Meters are used to measure voltage and current in different parts of circuits.
Electrical curcuits
This document provides information about electrical circuits, including Ohm's Law, voltage, current, resistance, and different types of circuits. It explains that voltage is a force that pushes current through a circuit, resistance impedes current flow, and current is the flow of electrons. Circuits can be connected in series, with one path for electricity, or parallel, with multiple paths. The key concepts of measuring current with an ammeter and voltage with a voltmeter are also summarized.
science electricity
There are two types of electric charges: positive charges consisting of protons and negative charges consisting of electrons. When multiple resistors are connected between the same points, they are said to be connected in parallel. The combined resistance of parallel resistors is less than the smallest individual resistance and is calculated using the formula: 1/R=1/R1 + 1/R2 + 1/R3. Parallel circuits have advantages over series circuits like each appliance receiving the same voltage and an appliance failing not affecting others. Heat produced in a wire is directly proportional to the square of the current, resistance of the wire, and time current is passed. This heating effect has many applications including incandescent light bulbs, electric stoves, solder
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Parallel and Series Circuits.pptx
- 1. Lesson 7: Parallel and Series Circuits
- 2. Learning Goals We will be learning to…
- 3. Success Criteria By the end of this class, I will be able to…
- 4. Series Circuit 01 You can enter a subtitle here if you need it
- 5. Series Circuits • Only one path for current to flow • The current is the same in all parts of the circuit. IT = I1 = I2 = I3… • Therefore, the number of coulombs passing • through each load is the same. • If the circuit is broken at any point, then the current flow stops.
- 6. Series Circuits • Since the current flows through all loads, electrons lose energy as they pass through each load. • The potential difference (voltage) is split between the loads in the circuit. Therefore, VT = V1 + V2 + V3 …
- 7. Series Circuit • The resistance increases with each load. RT = R1 + R2 + R3 … • The power increases with each load PT = P1 + P2 + P3 … (same as in parallel)
- 8. Parallel Circuit 02 You can enter a subtitle here if you need it
- 9. Parallel Circuits • There is more than one path for the current to flow through • Current is NOT the same at different points. The current (the electrons) is shared by as many paths as there exist. • Current flowing from the energy source equals the sum of all the separate branch currents in the circuits. IT = I1 + I2 + I3 … • I, in each path, depends on the size of the resistor. • The more resistors, there are in the circuit, the more “pull” for energy and the greater the current.*
- 10. Parallel Circuit • If any one device is removed, it does not affect the others. • Each branch circuit is connected directly across the battery, therefore has the identical potential difference as there is across the battery. VT = V1 = V2 = V3 …
- 11. Parallel Circuit • Adding resistance in parallel, decreases the total resistance of the circuit. RT = 1/R1 + 1/R2 + 1/R3 … • The power is calculated as follows: PT = P1 + P2 + P3 … (the same as in series)
- 13. Two Types of Current ●Direct current – electrons always travel in one direction as in batteries and cells. ●Alternating current – electrons go back and forth rapidly sixty times per second. ●This allows for efficient distribution of high voltage electricity via transformers that increase (step up) or decrease (step down) the potential difference of power lines as it gets closer to your home or school
- 14. Fun Fact ● Do you know who invented alternating current? ● Nikola Tesla
- 15. Electricity in the home ●For practical three wires enter our homes: ●1 white (neutral – 0 Volts) ●1 red (+120 Volts) ●1 black (-120 Volts)
- 16. Electricity in the home • If too much current flows through a wire, it overheats which can lead to a fire. Fuses and circuit breakers detect dangerous current overloads. • FUSES – a thin wire that melts at a pre-determined current level so as to break the circuit. Must be replaced with a new fuse. • CIRCUIT BREAKER – a heat sensitive switch that “trips” off when current overheats the wire. Can be reset by flipping the switch.
- 17. Electricity in the home • In your home, a digital or dial meter reads the electric current used in kilowatt-hours (1 kW•h = 1000 watt hours).
- 18. Measurements ●WHAT’S A JOULE?? A JOULE (J) is the unit for ENERGY ●WHAT’S A WATT?? A WATT (W) is the unit for power - a kilowatt (kW) is one thousand watts ( 1.0 kW = 1000 W) ●POWER POWER MEASURES “HOW FAST” YOU USE ENERGY – THE EQUATION FOR POWER IS OR
- 19. Unit of energy ●THE kWh as a UNIT OF ENERGY ( hint: get “E” by itself in the power equation)
- 20. Find the total cost of this sample electricity bill and answer the questions