POST UTME PAN-ATLANTIC UNIVERSITY 2017 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 100 Ω resistor is connected in series with a 200 Ω resistor. If a voltage of 12 V is applied across the circuit, what is the current in the circuit?
A. 0.05 A
B. 0.1 A
C. 0.15 A
D. 0.2 A
Question 2
A magnetic field of 0.5 T is applied to a current-carrying wire of length 2 m. If the wire carries a current of 3 A, what is the magnitude of the force experienced by the wire?
A. 0.15 N
B. 0.3 N
C. 0.45 N
D. 0.6 N
Question 3
A 5 kg block is moving with a velocity of 2 m/s on a frictionless surface. If a force of 10 N is applied to the block, what is its new velocity?
A. 2.5 m/s
B. 3 m/s
C. 3.5 m/s
D. 4 m/s
Question 4
A gas is heated from 300 K to 400 K at cons\tant volume. If the initial volume is 2.00 L, what is the final volume?
A. 4.00 L
B. 3.33 L
C. 2.00 L
D. 1.50 L
Question 5
A magnetic field of strength 0.5 T is perp\endicular to a current-carrying wire of length 2 m. What is the magnitude of the force on the wire?
A. 0.5 N
B. 1 N
C. 2 N
D. 5 N
Question 6
A particle of mass 2 kg is moving in a circular path of radius 3 m with a cons\tant speed of 4 m/s. If the particle experiences a centripetal acceleration of 2 m/s^2, what is the magnitude of the net force acting on the particle?
A. 8 N
B. 12 N
C. 16 N
D. 20 N
Question 7
A uniform magnetic field of strength 2 T is applied to a coil of wire with 100 turns. If the coil is rotated by 90° about an axis perp\endicular to the magnetic field, what is the induced emf in the coil?
A. 10 V
B. 20 V
C. 40 V
D. 80 V
Question 8
A capacitor of capaci\tance 10 μF is connected in parallel with a capacitor of capaci\tance 20 μF. What is the equivalent capaci\tance?
A. 10 μF
B. 15 μF
C. 20 μF
D. 30 μF
Question 9
A \sinusoidal voltage source has a peak value of 10 V and a frequency of 50 Hz. If the voltage is connected in series with a 10 Ω resistor, what is the rms current flowing through the resistor?
A. 0.5 A
B. 1 A
C. 2 A
D. 5 A
Question 10
A 240 V, 10 A circuit has a resis\tance of 12 Ω. If a 20 Ω resistor is connected in series with the circuit, what is the new current in the circuit?
A. 5 A
B. 6 A
C. 8 A
D. 10 A
Question 11
A heat engine operates on a Carnot cycle between two temperatures of 300 K and 400 K. If the engine absorbs 1000 J of heat from the high-temperature reservoir, what is the efficiency of the engine?
A. 0.25
B. 0.33
C. 0.5
D. 0.67
Question 12
A particle of mass 2.00 kg is moving in a circular path with a radius of 3.00 m. If the particle has a speed of 4.00 m/s, what is the centripetal acceleration?
A. 0.800 m/s^2
B. 1.00 m/s^2
C. 1.25 m/s^2
D. 1.60 m/s^2
Question 13
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the change in its kinetic energy?
A. 50 J
B. 100 J
C. 150 J
D. 200 J
Question 14
A heat engine operates between the temperatures 500 K and 300 K. If the engine has an efficiency of 30%, what is the maximum possible work output?
A. 1000 J
B. 1500 J
C. 2000 J
D. 2500 J
Question 15
A particle of mass 5 kg is moving in a straight line with an initial velocity of 10 m/s. If the particle is subjected to a force of 20 N for 2 seconds, what is the final velocity?
A. 15 m/s
B. 20 m/s
C. 25 m/s
D. 30 m/s

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