Parallel plate capacitors - 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 1995

The purpose of a dielectric material in a parallel plate capacitor is to

A. Increase its capacitance
B. Decrease its capacitance
C. Insulate the plate from each other
D. Increase the magnetic field between the plates

Question 3:

• JAMB 2011

The capacitance of a parallel plate capacitor is 20 μf in air and 60 μf in the presence of a dielectric. What is the dielectric constant?

A. 0.3
B. 6.0
C. 3.0
D. 2.0