Concept of magnetic field - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 1979

Fig 8 shows a current I flowing in a copper wire situated in a magnetic field existing between the pole-pieces of a horse-shoe magnet.
Which of the following statements is correct?

A. The wire will experience a force in the direction into the paper
B. The wire will experience a force in the direction out of the paper
C. The wire will vibrate in a direction into and out of the paper
D. The wire will move in the direction of the field i.e toward the s-pole
E. The wire will not move because it is made of copper which is non magnetic