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Define the electric resistance of a wire and also write its SI unit.

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Define the electric resistance of a wire and also write its SI unit.

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Electric resistance (R) is defined as the ratio of the voltage applied (V) to the current(I) flowing through the circuit. 

It is given by the formula:

R = \(\frac{V}I\)

Its SI unit is known as ohm (Ω).

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