Jamb Physics 1986 Past Questions and Answers

Question 31:

• JAMB 1986

Which of the following is NOT a part of a d.c. electric motor?

A. Field-magnet
B. Armature
C. Commutator
D. Transformer

Question 32:

• JAMB 1986

Which of the following is stored by a dry Leclanche cell?

A. Electrical power
B. Kinetic energy
C. Electric current
D. Chemical energy

Question 33:

• JAMB 1986

Which of the following is true of magnetism?

A. Iron fillings cling mainly round the ends of a bar magnet
B. The freely suspended bar magnet comes to rest in the geographic north-south direction
C. Like poles attract
D. Iodestone is a non-magnetic oxide

Question 34:

• JAMB 1986

The angle between the magnetic meridian and the geographic meridian at a locality on the earth is the

A. Longitude of the locality
B. Angle of inclination at the locality
C. Latitude of the locality
D. Angle of declination of the locality

Question 35:

• JAMB 1986

The sign of the change on a charged glass rod may be determined with

A. A charged electroscope
B. An uncharged electroscope
C. A galvanometer
D. An electrometer