STANDARD Physics RMS Value MCQ Question with Solution

A 100 Ω resistor is connected to a 220 V, 50 Hz ac supply. The rms value of current in the circuit is

A

1.56 A

B

1.56 mA

C

2.2 A

D

2.2 mA

Option C

Here, R = 100 Ω, Vₘₛ = 220 V, ν = 50 Hz. Therefore, Iₘₛ = Vₘₛ / R = 220 / 100 = 2.2 A.

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