Question

# The inverse of resistance is called ________.

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Solution

## Resistance:Resistance $\left(R\right)$ can be defined as the measure of opposition to the flow of current through a circuit.According to Ohm's law, “The current $\left(I\right)$ flowing in a circuit is directly proportional to the potential $\left(V\right)$ across it, given all physical conditions and temperature remains same.” So, $V\propto I$. Thus a proportionality constant, which is resistance, is introduced $V=IR$.Thus, the formula for resistance can also be given as $R=\frac{V}{I}$.$R$ is constant for a given metallic wire, if the temperature remains constant.Its SI unit is ohms $\left(\Omega \right)$.Conductance:Conductance $\left(C\right)$ can be defined as the measure of the ease with which the current flows through a circuit.Conductance is the reciprocal of resistance, $C=\frac{1}{R}$.Its SI unit is seimens $\left(S\right)$, also known as mho.Hence, the inverse of resistance is called conductance.

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