Question

In a circuit, an alternating current and a direct
current are supplied together. The expression of the
instantaneous current is given as i = 3 + 6 sinwt.
Then, the rms value of the current is
(a) 3A
(b) 6 A
(c) 3√2 A
(d) 3√3 A​

Answer 1

Answer:

d-3√3

Explanation:

√{9+(36/2)} =square of direct current+square of alternating current by 2 then whole root