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Sunday, 16 August 2026
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Physics Past Questions and Answers

Topic: Arrangement of cells

Jamb Physics Questions - Arrangement of cells

Question 16:
A cell can supply current of 0.4 A and 0.2 A through a 4.0Ω and 10.0Ω resistors respectively.
This internal resistance of the cell is
  • A 2.0Ω
  • B 1.0Ω
  • C 2.5Ω
  • D 1.5Ω
View Answer & Explanation
Question 17:
The current through a resistor in an a.c circuit is given as 2 sin wt. Determine the d.c. equivalent of the current
  • A A/√2
  • B 2/√A
  • C 2 A
  • D √2 A
View Answer & Explanation
Question 18:
an electric cell with nominal voltage E has a resistance of 3Ω connected across it. If the voltage falls to 0.6E, the internal resistance of the cell is
  • A 1Ω
  • B
  • C 3Ω
  • D 4Ω
View Answer & Explanation
Question 19:
A cell whose internal resistance is 0.5Ω delivers a current of 4A to an external resistor,The loss voltage of the cell is
  • A 1.250V
  • B 2.000V
  • C 8.000V
  • D 0.125V
View Answer & Explanation
Question 20:
Three cells each of e.m.f 1.5 V and internal resistance 2.5Ω are connected as shown in the diagram above. Find the net e.m.f and the internal resistance
  • A 1.5V, 7.50Ω
  • B 1,5V, 0.83Ω
  • C 4.5V, 7.50Ω
  • D 4.5V, 0.83Ω
View Answer & Explanation