Moving coil and moving iron instruments - 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

On which of the following is the operation of a moving coil galvanometer based?

A. Magnetic effect of electric current
B. Electromagnetic induction
C. Chemical reaction produced by electricity
D. Force on current carrying conductor in a magnetic field
E. Electrical energy and power

Question 3:

• JAMB 2002

Which of the following statements is true of the properties of a moving coil galvanometer?

A. THe coil has a small area
B. There are strong hair springs to gives a large control panlel
C. There is a strong permanent magnet to give high magnetic flux
D. It has a small number of turns of coil