POST UTME BSU 2021 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 10.0 mH inductor is connected in series with a 20 Ω resistor and a 12 V battery. If the initial current is 0 A, what is the current after 2.0 ms?
A. 0.5 A
B. 1.0 A
C. 1.5 A
D. 2.0 A
Question 2
A 2.0 mH inductor is connected in series with a 10 kΩ resistor and a 20 V battery. If the initial current is 0 A, what is the current after 5.0 ms?
A. 0.5 A
B. 1.0 A
C. 1.5 A
D. 2.0 A
Question 3
A 100 W light bulb is connected to a 120 V power source. If the resis\tance of the bulb is 20 Ω, what is the current flowing through it?
A. 0.5 A
B. 1.0 A
C. 1.5 A
D. 2.0 A
Question 4
A 5.0 kg block is attached to a horizontal spring with a force cons\tant of 100 N/m. If the block is displaced by 0.20 m from its equilibrium position and released from rest, what is its maximum speed?
A. 0.50 m/s
B. 1.0 m/s
C. 1.5 m/s
D. 2.0 m/s
Question 5
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 8.0 nF, what is the dielectric cons\tant of the material between the plates?
A. 1.0
B. 2.0
C. 3.0
D. 4.0

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