In a circuit an alternating current and a direct current are supplied together. The expression of the instantaneous current is given as 
. Then the r.m.s. value of the current is
A
3 A
B
6 A
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
The given current is a mixture of a dc component of 3 A and an alternating current of maximum value 6 A
Hence r.m.s. value
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