JAMB Physics Past Questions & Answers - Page 236

1,176.

If the inclination at Ibadan is 7oS, this means that

A.

the angle between the geographic meridian and the magnetic meridian at Ibadan is 7o

B.

the earth's magnetic intensity at Ibadan makes angle 7o with the horizontal direction

C.

the earth's magnetic intensity at Ibadan makes angle 7o with the horizontal direction

D.

the north pole of a magnetic needle dips downward at Ibadan

Correct answer is B

No explanation has been provided for this answer.

1,177.

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

Correct answer is A

No explanation has been provided for this answer.

1,178.

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

Correct answer is D

No explanation has been provided for this answer.

1,179.

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

Correct answer is B

No explanation has been provided for this answer.

1,180.

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

A.

Electrical power

B.

Kinetic energy

C.

Electric current

D.

Chemical energy

Correct answer is D

No explanation has been provided for this answer.