What is Electricity?

When a metal wire is connected across two terminals of a voltage source with positive and negative terminals, the source develops an electric field across the metallic wire. This field forces negative charge or electrons to flow towards the positive terminal. That negative charge is nothing but current or electricity. It is measured in amperes(A).

In simple terms, electricity is the flow of negative charges or electrons.

Mathematically, 

$i=\frac{v}{r}$  where, i = current, v = voltage, r = resistance

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Updated on: 10-Oct-2022

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