CUET Preparation Today
The resistance of a wire is R What will be its new resistance ($R_{new}$), if it is stretched to n times its original length? |
$R_{new} = nR$ $R_{new} = n^2R$ $R_{new} = R$ $R_{new} = R/n^2$ |
$R_{new} = n^2R$ |
The correct answer is Option (2) → $R_{new} = n^2R$ |
