POST-UTME Physics Past Questions, Answers & Explanations - Physics

Post Utme Physics Questions

Question 36:

Two inductors of inductances \(4 \mathrm{H}\) and \(8 \mathrm{H}\) are arranged in series and a current of \(10 \mathrm{~A}\) is passed through them.
What is the energy stored in them?

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A 500J
B 50J
C 133J
D 250J

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Question 37:

Which of the following will be applied when a metal \(Y\) is used to electroplate another metal \(X\) in electrolysis?

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A \(Y\) is the anode and very high current is used
B \(X\) is the anode and \(Y\) is the cathode
C \(Y\) is the cathode and \(X\) is the anode
D \(X\) is the anode and very high current is used

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Question 38:

If a tube of small radius opened at both ends is placed in a liquid, the liquid will ____________

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A Fall below the liquid level if the liquid does not wet the glass
B Rise above the liquid level if the liquid does not wet the glass
C Remain at the same level irrespective of whether the liquid wets the glass or not
D Fall below the liquid level if the liquid wets the glass

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Question 39:

A piece of rubber 1 Dem long stretches 6mm when a load of 100N is hung from it.

What is the area stretched if the young modulus is 50N/m²

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