Jamb Physics 2004 Past Questions and Answers

Question 11:

• JAMB 2004

The binding energy of helium He is

4

2

[atomic mass of proton = 1.00783U,
atomic mass of neutron = 1.00867U]

A. 4.033U
B. 2.017U
C. 0.033U
D. 0.330U

Question 12:

• JAMB 2004

Flourescent tubes produces light by the

A. Excitation of gas molecules
B. Conduction of solar energy
C. Refraction of light by gas molecules
D. Thermal agitation of electron in the tubes

Question 13:

• JAMB 2004

The energy stored in an inductor of inductance 5mH when a current of 6A flows through it is

A. 9.0 x 10^-3J
B. 9.0 x 10^-2J
C. 1.4 x 10^-2J
D. 1.8 x 10^-3J

Question 14:

• JAMB 2004

Which of the following is an electrolyte?

A. Paraffin
B. Sugar solution
C. Grape fruit
D. Alcohol

Question 15:

• JAMB 2004

A steady current of 2A flows in a coil of emf 12V for 0.4s. A back emf of 3V was induced during this period. The stored energy in the loop that can be utilized is

A. 9.6J
B. 2.4J
C. 12.0J
D. 7.2J