Electrostatics - Jamb Physics Past Questions and Answers

Question 66:

• JAMB 2018

A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has

A. No charge and a zero potential
B. A positive charge and a zero potential
C. A negative charge and a positive potential
D. A negative charge and a negative potential

Question 67:

• JAMB 2018

The energy needed to move a unit positive charge around a complete electric circuit is called the

A. Electromotive force
B. Electric potential difference
C. Electric energy
D. Kinetic energy

Question 68:

• JAMB 2019

Aluminium is sometimes used as the leaf of an electroscope because it

A. Is a light material
B. Is a good conductor
C. Is a good insulator
D. Can be converted into thin sheets

Question 69:

• JAMB 2019

In which of the points labelled A, B, C, D and E on the conductor shown would electric charge tend to concentrate most

A. A
B. B
C. C
D. E