Abia State University Physics Post Utme Past Questions and Answers

Question 1 :

The resistance of a wire depends on ____________

A. The length of the wire
B. The diameter of the wire
C. The temperature of the wire
D. The resistively of the wire
E. All of the above

Question 2 :

An ammeter of resistance \(S\) has a fullscale deflection when a current of \(50 \mathrm{~mA}\) flows in it. The value of the resistor required to adapt It to measure a current of \(5 \mathrm{~A}\) is ____________

A. \(5.00\)
B. \(0.05\)
C. \(19.8 \mathrm{ft}\)
D. \(0.25\)

Question 3 :

Two cell each of e.m.f \(1.5 \mathrm{~V}\) and an internal resistance 2 ohms are connected in parallel. Calculate the current flowing when the cells are connected to a 1 ohms resistor.

A. \(0.75 \mathrm{ohms}\)
B. \(1.50 \mathrm{hms}\)
C. 0 ohms
D. \(1.0 \mathrm{ohms}\)
E. \(0.600 \mathrm{ohs}\)

Question 4 :

The capacitance of a parallel plate capacitor when in air is 3 of and in the presence of a dielectric material 6 of. The dielectric constant is ____________

A. 9
B. 18
C. 3
D. 2

Question 5 :

Which of the following may be used to determine relative humidity in a physics laboratory?
I. Manometer
II. Wet-and-dry bulb hygrometer
III. Hair hygrometer
IV. A hydrometer

A. I only
B. II and only
C. II only
D. III only
E. II, III and IV only