Electric Current and Voltage

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Get to Know About Electric Current and Voltage

Electric current flows along a wire. Tiny particles carry charge. They move along the wire. We measure current in amperes. Voltage shows the push between two spots in a circuit. You need both to make a circuit work.

Ohm law links voltage and current. It states current equals voltage divided by resistance. Resistance slows the flow. Lower resistance lets more current pass. This rule helps predict current in simple circuits.

People use these ideas to wire homes. Electric motors depend on current and voltage. Chargers and lights follow the same rules. Engineers change voltage or resistance to shape current. This simple link controls many devices.