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Sunday, 21 June 2026
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Physics Past Questions and Answers

Topic: Current Electricity

Jamb Physics Questions - Current Electricity

Question 16:
A 24V potential difference is applied across a parallel combination of four 6-ohms resistor, The current in each resistor is
  • A 1A
  • B 4A
  • C 16A
  • D 18A
  • E 36A
View Answer & Explanation
Question 17:
The difference of potential between the terminals of cells is 2.2 volts. When a 4ohm resistor is connected across the terminals of this cells, the potential difference is 2 volts. What is the internal resistance of the cell?
  • A 0.10 ohms
  • B 0.25ohms
  • C 0.40ohms
  • D 2.50ohms
  • E 4.00ohms
View Answer & Explanation
Question 18:
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
View Answer & Explanation
Question 19:
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
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Question 20:
Which of the following will convert a milliammeter to a voltmeter?
  • A Low series resistance
  • B Low parallel resistance
  • C High series resistance
  • D High parallel resistance
  • E Parallel resistance equal to milliammeter resistance
View Answer & Explanation