First slide

Dimensions of physical quantities

Question

The dimensions of emf in MKS is

Moderate

A

$[M L^{- 1} T^{- 2} Q^{- 2}]$
B

$[M L^{2} T^{- 2} Q^{- 2}]$
C

$[M L T^{- 2} Q^{- 1}]$
D

$[M L^{2} T^{- 2} Q^{- 1}]$

Solution

$E = \frac{W}{Q} - = \frac{M L^{2} T^{- 2}}{Q}$
$[e] = [M L^{2} T^{- 2} Q^{- 1}]$

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