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The dimension of electromotive force are `

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Question 37

The dimension of electromotive force are `

A

ML²T^-3I^-1

B

ML²T^-3I^-2

C

M²LT^-2I^-1

D

M²L²T^-1I^-1

Explanation

Share Answer Electrical work W = QE,
Where Q is the quantity of change and E is the electromotive force.
E = W = FxDQ_It
Where D is the displacement,I = current and t = time
But dimension of force,
= unit of mass x unit of Acceleration
= unit of mass xunit of velocityunit of time
= unit of mass x unit of displacement__unit of time x unit of time
ML/T² = MLT^-2
Dimension of emf E
= MLT^-2L = ML²T^-3I^-1__IT

Correct option: A

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