Jamb Physics 2013 Past Questions and Answers

Question 36:

• JAMB 2013

A cell of emf 1.5V is connected in series with a 1Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell

A. 4.0Ω
B. 3.0Ω
C. 1.5Ω
D. 1.0Ω

Question 37:

• JAMB 2013

Which of the following obeys ohms laws?

A. Electroytes
B. Metals
C. Diode
D. Glass

Question 38:

• JAMB 2013

A house has ten 40W and five 100W bulbs. How much will it cost the owner of the house to keep them lit for 10 hours if the cost of a unit is 5N?

A. N90
B. N50
C. N45
D. N5

Question 39:

• JAMB 2013

An electric device is rated 2000W, 250V. Calculate the maximum current it can take

A. 9A
B. 8A
C. 7A
D. 6A

Question 40:

• JAMB 2013

When a charge moves through an electric circuit in the direction of an electric force, it

A. Gains both potential and kinetic energy
B. Gains potential energy and lose kinetic energy
C. Loses potential energy and gains kinetic energy
D. Loses both potential and kinetic energy