Saturday, January 11, 2014

Potential Difference, Electric Current, and Electric Resistance

In an electrical circuit the the electrons from the battery moves around the circuit, when an electron pass through a light bulb in the circuit they lose some of the electrical energy making the lamp to lit up, therefore across the lamp there is an electrical energy difference, electrons that are entering the lamp have a higher electrical energy than the one leaving the lamp, this difference in electrical energy on lamp is called "Potential Difference" or "P.D".

The crash or the bump of electrons and wire in an electrical circuit, making it harder for the electrons to flow properly in an electrical circuit are called Electric Resistance.

The flow of electrons in an electrical circuit are called Electric Current

Volts (V) is a measuring unit used by Potential Difference, Potential Difference is also measured using a Voltmeter

Amperes (A)  is a measuring unit used by Electric Currents

Ohms (Ω) is a measuring unit used by Electric Resistance

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