Electric Current Mini Lesson

Electric current

By Bingxue Wang

​The energy of electric charges

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Electrical

energy

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The rate of flow of electric charges (per second)​

Unit: ​•amperes, “amps", A.

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Electric current

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A wire with a current of 2 A has

as much charge passing by each second as a wire with a current of 1 A has.

The direction of current and electron movement

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• charges always flow in the same direction.

• Generated by battery​

• current alternates direction

• Generated by powerplant​

Open Ended

Name the difference between AC and AC

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• Resistance: The opposition to the flow of electric charge. Unit: ohms, Ω

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What affects electric current?

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• Voltage/electrical potential: The amount of work required to move each unit of charge between two points. Unit: volts, V

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What affects electric current?

​What can you do to make the water flow faster?

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What affects resistance?

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​Ohm's Law