Jamb Physics 2010 Past Questions and Answers

Question 26:

• JAMB 2010

Dispersion occurs when white light passes through a glass prism because of the

A. Different hidden colours in the glass
B. Different speeds of the colour in the glass
C. Defects in the glass
D. High density of the glass

Question 27:

• 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

Question 28:

• JAMB 2010

Power supply is transmitted at a very high voltage and low current in order to

A. Make pass through the trasformers
B. Increase the power supply
C. Make it travel fast
D. Prevent overheating of the coil

Question 29:

• JAMB 2010

A galvanometer with full-scale deflection of 10 mA is to be converted to a voltmeter with full-scale deflection of 5v. the resistance of the galvanometer is

A. 1Ω
B. 2Ω
C. 5Ω
D. 10Ω

Question 30:

• JAMB 2010

Two inductors of inductances 5 mll and 15 mll are connected in series and a current of 5A flows through them. the total energy stored in the inductor is

A. 500.0J
B. 250.0J
C. 62.5J
D. 50.0J
E. No correct option