The electric current in AC circuit is given by the relation i=3sin⁡ωt+4cos⁡ωt. The rms value of the current in the circuit in ampere is :

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answer is A.

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Detailed Solution

i=3sin⁡ωt+4cos⁡ωti=35sin⁡ωt+45cos⁡ωt5i=5sin⁡(ωt+α)izns=52

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