Verified Solution • 2025–26 Session
moderate
QJEEM18Ph8573: JEE Main 2018 Physics - Class 12 JEEM18Ph8573 Solution: In an a.c. circuit, the instantaneous e.m.f. and current are…
In an a.c. circuit, the instantaneous e.m.f. and current are given by
e = 100 sin 30 t
i = 20 sin
In one cycle of a.c., the average power consumed by the circuit and the wattless current are, respectively
e = 100 sin 30 t
i = 20 sin
In one cycle of a.c., the average power consumed by the circuit and the wattless current are, respectively
Multiple Choice Options
- A 50, 0
- B 50, 10
- C 10002,10
- D 502
Step-by-Step Verified Solution
Wattless current,
here
Average power,
Pav = Vrms Irms cos
=
=
here
Average power,
Pav = Vrms Irms cos
=
=