engineering physics MCQ #236

The current in an AC circuit is given by I = 5 sin(100πt). What is the frequency?

engineering physics MCQ #236

  1. Question 1

    Q1. The current in an AC circuit is given by I = 5 sin(100πt). What is the frequency?

    • A) 25 Hz
    • B) 50 Hz
    • C) 100 Hz
    • D) 200 Hz

    Answer: 50 Hz

    Explanation: Comparing with I = I0 sin(ωt), ω = 100π, so f = ω / (2 * π) = 50 Hz.