Post Utme Physics Past Questions and Answers

Question 531:

An electric device is rated \(2000 \mathrm{~W}, 250 \mathrm{~V}\), the correct fuse rating of the device is ____________

A. \(8 \mathrm{~A}\)
B. \(9 \mathrm{~A}\)
C. \(7 \mathrm{~A}\)
D. \(6 \mathrm{~A}\)

Question 532:

Satellite communication network makes use of ____________

A. Infrared rays
B. Sound wave
C. Visible light
D. Radio wave

Question 533:

If two inductors of inductances \(3 \mathrm{H}\) and \(6 \mathrm{H}\) are arranged in series, the total inductance is ____________

A. \(18.0 \mathrm{H}\)
B. \(9.0 \mathrm{H}\)
C. \(2.0 \mathrm{H}\)
D. \(0.5 \mathrm{H}\)

Question 534:

The current in a reverse biased junction is due to ____________

A. Electrons
B. Majority carriers
C. Holes
D. Minority carriers

Question 535:

In an A . C circuit that contains only a capacitor, the voltage lags behind a capacitor, the voltage lags behind the current by ____________

A. \(90^{\circ}\)
B. \(180^{\circ}\)
C. \(60^{\circ}\)
D. \(30^{\circ}\)