STANDARDPhysics-Alternating Current
STANDARD Physics RMS Value MCQ Question
Type: MCQ-numerical-Medium-Class 12
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
Correct Answer
Option C
Detailed Explanation
Here, R = 100 Ω, Vₘₛ = 220 V, ν = 50 Hz. Therefore, Iₘₛ = Vₘₛ / R = 220 / 100 = 2.2 A.
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