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In an a.c circuit the e.m.f(e) and the c...

In an a.c circuit the e.m.f(e) and the current (i) at any instant are given respectively by :

A

`(E_0I_0)/2`

B

`(E_0I_0)/2sinphi`

C

`(E_0I_0)/2cosphi`

D

`E_0I_0`

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