Question Detail

PHY 102 Test Compilation PHY 102 2 Objective Question

Question

An a.c circuit has a peak voltage of 100V across a 50Ω resistor. What are the respective peak and r.m.s currents?
Options
A 1.414 A, 2A
B 2A, 2.838A
C 2.838A, 2A
D 2A, 1.414A
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

I_peak = V_peak / R = 100/50 = 2 A. I_rms = I_peak / √2 = 2 / 1.414 = 1.414 A.

Hint

I_peak = V_peak/R; I_rms = I_peak/√2.

Question Info