Question

Dimensions of resistance in an electrical circuit, in terms of dimension of mass m, of length l, of time t and of current i, would be

Answer 1

Resistance = V / I

Potential difference, V = U/q

Where, U = Electrical potential energy and q = electrical charge = I*t

[U] = [Energy] = ML^2T^(-2)

[q] = IT

[R} = ML^2T^(-2) / {(IT)*I} = ML^2T^(-3)I^(-2).