JEE Main20253 Apr 2025Evening ShiftPhysicsAlternating CurrentActual
An electric bulb rated as 100 ~W -220 ~V is connected to an ac source of rms voltage 220 V. The peak value of current through the bulb is :
Options
- A0.64 ~A
- B0.45 ~A
- C2.2 ~A
- D0.32 ~A
Correct answer
A. 0.64 ~A
Step-by-step solution
aligned & P = v _ rms i _ rms & i _ rms = 100 220 & i ₀= 2 i _ rms =0.64 ~A aligned