Post Utme Physics Past Questions and Answers

Question 11:

The angle between the earth's magnetic field and the horizontal is called angle of ____________

A. Declination
B. Dip
C. Variation
D. Inclination

Question 12:

The basic difference between the galvanometer and the electric motor is ____________

A. The size of the magnetic fields
B. The presence of hair springs in the galvanometer
C. The soft iron armature in the galvanometer
D. The couple formed on the parallel sides of the rectangular coil in the

Question 13:

The electromotive force is in such a direction as to oppose the motion or charge producing it This is a statement of ____________

A. Faraday's Law
B. Lenz Law
C. Maxwell Law
D. Ampere's law

Question 14:

The potential difference across the ends of a wire is doubled in magnitude. If Ohm's law is obeyed, one of the following statements concerning the resistance of the wire is true?

A. The resistance is one half of its original value.
B. The resistance is twice its original value.
C. The resistance is not changed.
D. The resistance increases by a factor of four.

Question 15:

The process of adding impurity to a semiconductor to increase its conductivity is called ____________

A. Doping
B. Annealing
C. Heating
D. Hardening