Current Electricity - Jamb Physics Past Questions and Answers

Question 31:

• JAMB 1983

Four resistors R1,R2,R3 and R4 are connected in series as shown above, V1,V2,V3 are voltmeters connected as indicated above. Which of the following relations is correct??

A. V1 = V3 =V2/2
B. V1 = 2V2 = V3
C. V1=1/2V3 =V3
D. V2 - V1 = V3

Question 32:

• JAMB 1983

Each of the figures in the diagram above represent two current carrying conductors situated close to each other. In which two diagrams, are the forces between the two wires attractive

A. I and V
B. I and II
C. II and IV
D. II and V
E. III and IV

Question 33:

• JAMB 1984

The unit of quantity of electricity is called

A. The ampere
B. The volts
C. The coulomb
D. The ammeter
E. Electromotive force

Question 34:

• JAMB 1984

The resistance of a wire depends on

A. The length of the wire
B. The diameter of the wire
C. The temperature of the wire
D. The resistivity of the wire
E. All of the above

Question 35:

• JAMB 1984

Two cells each of e.m.f. 1.5V and an internal resistance 2\(\Omega\) are connected in parallel. Calculate the current flowing when the cells are connected to a 1\(\Omega\) resistor

A. 0.75\(\Omega\)
B. 1.5\(\Omega\)
C. 0.5\(\Omega\)
D. 1.0\(\Omega\)
E. 0.6\(\Omega\)