Alternating Current

Question: An alternating current is given by the equation $i = {i_1}\cos \omega \,t + {i_2}\sin \omega \,t$. The r.m.s. current is given by

1) $\frac{1}{{\sqrt 2 }}({i_1} + {i_2})$

2) $\frac{1}{{\sqrt 2 }}{({i_i} + {i_2})^2}$

3) $\frac{1}{{\sqrt 2 }}{(i_1^2 + i_2^2)^{1/2}}$

4) $\frac{1}{2}{(i_1^2 + i_2^2)^{1/2}}$

Solution:

Explanation: No Explanation

Alternating Current Voltage Power

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