1.

Compute The Dimensional Formula Of Electrical Resistance (r)?

Answer»

ACCORDING to OHM’s law

V = IR or R = V/I

Since Work DONE (W) = QV where Q is the charge

⇒ R = W/QI = W/I2t (I = Q/t)

DIMENSIONS of Work [W] = [M1L2T-2]

∴Dimension of R = [R] = [M1L2T-2][A-2T-1] = [M1L2T-3A-2]

According to Ohm’s law

V = IR or R = V/I

Since Work done (W) = QV where Q is the charge

⇒ R = W/QI = W/I2t (I = Q/t)

Dimensions of Work [W] = [M1L2T-2]

∴Dimension of R = [R] = [M1L2T-2][A-2T-1] = [M1L2T-3A-2]



Discussion

No Comment Found

Related InterviewSolutions