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Question: Answered & Verified by Expert
The quantity of a charge that will be transferred by a current flow of \( 20 \) A over \( 1 \) hour \( 30 \)
minutes period is
PhysicsCurrent ElectricityKCETKCET 2016
Options:
  • A \( 10.8 \times 10^{3} C \)
  • B \( 10.8 \times 10^{4} C \)
  • C \( 5.4 \times 10^{3} \mathrm{C} \)
  • D \( 1.8 \times 10^{4} \mathrm{C} \)
Solution:
1440 Upvotes Verified Answer
The correct answer is: \( 10.8 \times 10^{4} C \)
Given, $I=20 \mathrm{~A} ; \mathrm{t}=1$ hour 30 minutes $=90$ minutes $=90 \times 60$ seconds
Therefore, charge transferred
$Q=I \times t=20 \times 90 \times 60=108 \times 10^{3} \mathrm{C}$
Thus, $Q=10.8 \times 10^{4} \mathrm{C}$

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