Existence of positive and negative charges in matter - 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

It is known that a neutron exists in a light atomic nucleus. Which of the following also exists in the nucleus?

A. An electron
B. A \(\beta\)-particle
C. An \(\alpha\)-particle
D. A proton
E. An atom

Question 3:

• JAMB 1981

Which of the following statements is CORRECT?

A. Charges generated on glass rubbed with silk are called negative
B. Charges in various media can be carried by protons detached from their atom
C. The magnitude of any charge is a multiple of the charge of an electron
D. The intensity of an electric field is a scalar quantity
E. If 500 joules of work are required to move a 2-coulomb charge between two points, the potential difference between the two point is 100V

Question 4:

• JAMB 2010

When a positively charged rod is brought nearer the cap of a positively charged electroscope, the leaves divergence will

A. Be induced
B. Converge
C. Diverge
D. Remain constant