What devices make electricity safe to use? How do series and parallel circuits differ? Key Concept: Circuit diagrams use symbols to represent parts of a . The current is the same throughout the entire circuit The total . Section Current is what actually flows and does work.
A difference in voltage provides the energy that causes current to flow.
Multimeters can measure both voltage and .
Switches show places where the circuit can be opened. This is called an open circuit. If the switch is close the circuit is complete, and charge can flow. Write the equation for calculating electric power.
Name five safety devices used with electric current. Series and Parallel Circuits 20. Doubling the net charge on one object doubles the electric force However, doubling the distance between the objects . Electric Power, AC, and DC Electricity. The battery has voltage of V. Find the electric power delivered by the battery. Power delivered by the battery: Power in the resistor R1: . The power is determined by the voltage of the power supply and the current that is . Inexpensive electrical power is essential.
List at least ten electrical devices that you have used today. In some strings of Christmas lights, none of the lights work if one light is burned out. It does not contain any branches If one of the loads from the circuit is removed or is broken then the circuit gets broken resulting in no electricity flow. One light goes, they all go” Example: Some Christmas Tree lights.
Cross section – how wide the area is the electrons are trying to move through. We will be using these three concepts as we next look at electrical circuits and how electricity can be manipulated to many things.
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