Expressions for e.m.f- and current in A.C. circuit are E=200sin text 314 text t volt and I=100 sin ( 314t+(π /3) )A, the power factor will be:

Question

Expressions for e.m.f- and current in A.C. circuit are E=200sin text 314 text t volt and I=100 sin ( 314t+(π /3) )A, the power factor will be: (A)  1/2  (B)  1/4  (C)  1  (D)  -1

Tardigrade Admin · Accepted Answer

E=200 sin 314 t I=100 sin ( 314t+(π /3) ) Phase difference φ =(π /3) Power factor cos φ = cos (π /3)=(1/2)

Q. Expressions for e.m.f- and current in A.C. circuit are $E = 200 s in 314 t$ volt and $I = 100 sin (314 t + \frac{π}{3}) A,$ the power factor will be:

$1/2$

$1/4$

$1$

$- 1$

$E = 200 sin 314 t$ $I = 100 sin (314 t + \frac{π}{3})$ Phase difference $ϕ = \frac{π}{3}$ Power factor $cos ϕ = cos \frac{π}{3} = \frac{1}{2}$

Q. Expressions for e.m.f- and current in A.C. circuit are E=200sin314t volt and I=100sin(314t+3π​)A, the power factor will be:

1/2

1/4

1

−1

E=200sin314t I=100sin(314t+3π​) Phase difference ϕ=3π​ Power factor cosϕ=cos3π​=21​

Q. Expressions for e.m.f- and current in A.C. circuit are $E = 200 s in 314 t$ volt and $I = 100 sin (314 t + \frac{π}{3}) A,$ the power factor will be:

$1/2$

$1/4$

$1$

$- 1$

$E = 200 sin 314 t$ $I = 100 sin (314 t + \frac{π}{3})$ Phase difference $ϕ = \frac{π}{3}$ Power factor $cos ϕ = cos \frac{π}{3} = \frac{1}{2}$