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Compute The Dimensional Formula Of Electrical Resistance (r)? |
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Answer»
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] |
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