Current Electricity (Electricity)

Potential Difference, Current, Resistance, Ohms Law, Circuit

Electric Potential is potential energy per unit mass

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• Electric Potential Difference – Difference in electric potential / charge (Voltage)

• Current – the rate of flow of electric charges at a certain location. Rate flow of charge/time

Unit of measurement for I is Ampere, A.

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Resistance – the tendency of an object to resist flow of current ( unit of measurement, Ohms)

Electric Circuit

Electric Circuit – a closed loop of electron flow.

Circuit Symbols

Symbols

Types of Circuit

Series

Parallel

Combination

Ohms Law

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If a circuit has a resistance of 5 ohms and its voltage is 25 V, what is the total current of the circuit?

Given: V = 25 V, R = 5 Ohms.

AI

IIRV

5525

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