Question Detail

PHY 102 Test Compilation PHY 102 26 Objective Question

Question

An inductor, L = 0.5H, in series with a resistor, R = 250 Ohm, are connected to an a.c. source 100v, 50Hz. Determine the power factor of the circuit.
Options
A 0.84
B 0.85
Correct Answer
C 1.00
D (fourth option missing in source)
Correct Answer

Option B is the correct answer.

Detailed Explanation

XL=157.1. Z=sqrt(250^2+157.1^2)=295.2. PF=R/Z=0.85.

Hint

XL=157.1.

Question Info