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(C) The dimension of $CR$ is given by the product of capacitance $(C)$ and resistance $(R)$.$C = \frac{Q}{V}$,where $Q$ is charge and $V$ is potential

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Time period

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(C) The dimension of $CR$ is given by the product of capacitance $(C)$ and resistance $(R)$.$C = \frac{Q}{V}$,where $Q$ is charge and $V$ is potential difference.$R = \frac{V}{I}$,where $I$ is current.Therefore,$CR = \left( \frac{Q}{V} ight) 	imes \left( \frac{V}{I} ight) = \frac{Q}{I}$.Since $I = \frac{Q}{t}$,where $t$ is time,we have $\frac{Q}{I} = t$.Thus,the dimensions of $CR$ are the same as those of time,which corresponds to the time period.

Dimensions of $CR$ are those of

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