Question

dimension of emf & how it comes?

Answer 1

$\huge\red{As-Salamu-Alykum}$


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Unit of emf is volt

Volt is unit of Voltage

Voltage or potential difference is given by :-

V=W/q

So I can write :-

emf =W/q --------------------------------------(1)

W is work

W=Fs

W=Nm

W=kgms^_2.m

W=kgm^2s^_2 ----------------------------(a)

q is charge which is equal to

Q=It

Q=As -----------------------------( b )

Put a , b in equation 1

emf = kgm^2s^_2 /As

emf =kgm^2s^_3A^_1

So......

Dimensions are :-
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emf = [ML^2T^_3A^_1]



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