Simple A. C. Circuits - Jamb Physics Past Questions and Answers

Question 46:

• JAMB 2021

A 2H inductor has negligible resistance and is connected to a \(\frac{50}{\pi}\) Hz A.C supply. The reactance of the inductor is?

A. 200\(\Omega\)
B. 50\(\Omega\)
C. \(\frac{100}{\pi}\)
D. \(\frac{25}{\pi \Omega}\)

Question 47:

• JAMB 2021

In a series R-L-C circuit at resonance, the voltages across the resistor and the inductors are 30V and 40V respectively.

What is the voltage across the capacitor?

A. 30V
B. 40V
C. 50V
D. 70V