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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: (a) Electromagnetic Induction

Jamb Physics Questions - (a) Electromagnetic Induction

Question 31:
In the circuit diagram above , the ammeter reads a current of 3A when R is 5Ω and 6A when R is 2Ω. Determine the value of x
  • A 8Ω
  • B
  • C 10Ω
  • D 4Ω
View Answer & Explanation
Question 32:
In the diagram above, determine the r.m.s current
  • A 31A
  • B 48A
  • C 60A
  • D 80A
View Answer & Explanation
Question 33:
A bread toaster uses a current of 4A when plugged in a 24oV line. it takes 1 minute to toast slices of bread. what is the energy consumed by the toaster
  • A 5.76 x 10<sup style='font-size: smaller;'>4</sup>J
  • B 1.60 x 10<sup style='font-size: smaller;'>4</sup>J
  • C 3.60 x 10<sup style='font-size: smaller;'>3</sup>J
  • D 1.60 x 10<sup style='font-size: smaller;'>2</sup>J
View Answer & Explanation
Question 34:
When connected to a mains of 250V, the fuse rating in the plug of an electric device of 1 KW is
  • A 2 A
  • B 3 A
  • C 4 A
  • D 5 A
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Question 35:
Which of the following statements is true of the properties of a moving coil galvanometer?
  • A THe coil has a small area
  • B There are strong hair springs to gives a large control panlel
  • C There is a strong permanent magnet to give high magnetic flux
  • D It has a small number of turns of coil
View Answer & Explanation