MDCAT Physics MCQ #21

A 100 Ω resistor is connected to an AC source with an rms voltage of 220 V. What is the rms current?

MDCAT Physics MCQ #21

  1. Question 1

    Q1. A 100 Ω resistor is connected to an AC source with an rms voltage of 220 V. What is the rms current?

    • A) 1.1 A
    • B) 2.2 A
    • C) 3.3 A
    • D) 4.4 A

    Answer: 2.2 A

    Explanation: rms current = rms voltage / resistance = 220 V / 100 Ω = 2.2 A. Option A is incorrect because it is half the correct value.