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Monday, 22 June 2026
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Physics Past Questions and Answers

Topic: Current Electricity

Jamb Physics Questions - Current Electricity

Question 61:
A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω, the galvanometer could be converted to an ammeter capable of reading 2Amp. What is the current through the galvanometer?
  • A 2mA
  • B 10mA
  • C 20mA
  • D 25mA
View Answer & Explanation
Question 62:
An electron of charge 1.6 x 10-19C and mass 9.1 x 10-31kg is accelerated between two metal plates with a velocity of 4 x 107ms-1, the potential difference between the plates is
  • A 4.55 x 10<sup style='font-size: smaller;'>3</sup>V
  • B 4.55 x 10<sup style='font-size: smaller;'>2</sup>V
  • C 9.10 x 10<sup style='font-size: smaller;'>1</sup>V
  • D 4.55 x 10<sup style='font-size: smaller;'>1</sup>V
View Answer & Explanation
Question 63:
Which of the following obeys ohms laws?
  • A Electroytes
  • B Metals
  • C Diode
  • D Glass
View Answer & Explanation
Question 64:
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
View Answer & Explanation
Question 65:
To convert a galvanometer to a voltmeter, a
  • A High resistance is connected to it in series
  • B High resistance is connected to it in parallel
  • C Low resistance is connected to it in parallel
  • D Low resistance is connected to it in series
View Answer & Explanation