MHT CET202313 May 2023Evening ShiftPhysicsAlternating CurrentActual
A group of lamps having total power rating of 1000 ~W is supplied by an AC voltage of E =200 (310 t+60^ ) , the r.m.s. value of current flowing through the circuit is
Options
- A10 ~A
- B5 2 ~A
- C20 ~A
- D10 2 ~A
Correct answer
D. 10 2 ~A
Step-by-step solution
Power: P = 1 2 ~V ₀ I ₀ 1000= 1 2 200 I ₀ 60^ I ₀=20 ~A I _ mms = 20 2 I _ rms =10 2 ~A