. If instantaneous current in a circuit is given
by I = (2 + 3 sin ωt) A, then the effective value of
resulting current in the circuit is
(1)(17/2)1/2 ampere
(2) (2/17)1/2ampere
(3)(3/(2)1/2)1/2ampere
(4) 3(2)1/2ampere

Instantaneous current:I=Idc+Iac =a+bsinωtCompare with the given equation of I=2+3 sinωtThen,a=2andb=3Effective current=a2+b22                              =22+322                              =172 amperesAns:Option-1

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