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Thursday, 02 April 2026
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Physics Past Questions and Answers

Physics Questions

Question 3181:
Which of following functions is performed by manganese IV oxide in the Lenclanche cell?
  • A Control of local action
  • B Depolarisation of the cell
  • C Regulating current flow in the cell
  • D Reduction of the internal resistance of the cell
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Question 3182:
A car fuse marked 3A operates optimally on a 12V battery, calculate the resistance of the fuse
  • A 36.0\(\Omega\)
  • B 15.0\(\Omega\)
  • C 9.0\(\Omega\)
  • D 4.0\(\Omega\)
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Question 3183:
Find the cost of running a 60W lamp for 24 hours. If 1kW hr cost 5 naira
  • A 14.4 naira
  • B 12.5 naira
  • C 7.2 naira
  • D 2.0 naira
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Question 3184:
The quantity of electric charge stored in a capacitor is measured in
  • A Farad
  • B Ampere
  • C Coulomb
  • D Volt
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Question 3185:
Calculate the energy stored in a 20\(\mu F\) capacitor. If the p.d between the plates is 40V
  • A 3.2 x 10-2J
  • B 1.6 x 10-2J
  • C 8.0 x 10-4J
  • D 4.0 x 10-4J
View Answer & Explanation