In an a.c circuit, the emf and current at any instant are e = E0 sin ωt, i = I0 sin ωt – Ø Average power is given by
A. E0 I0/2
B. (E0 I0/2) sin Φ
C. (E0 I0/2) cos Φ
D. E0 I0
Answer:C
In an a.c circuit, the emf and current at any instant are e = E0 sin ωt, i = I0 sin ωt – Ø Average power is given by
A. E0 I0/2 B. (E0 I0/2) sin Φ C. (E0 I0/2) cos Φ D. E0 I0