Physics Current Electricity UHS 2024
PMDC Verified Question 16 of 112
A charge of 90 C passes through a wire for 30 seconds. Then the current in the wire will be:
A
3 A
B
0.3 A
C
3 mA
D
0.3 mA
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: 3 A
Concept:

Electric current is the continuous rate of charge flow.

Formula:

$$ I = \frac{Q}{t} $$

Solution:

  • Given total Charge \( Q = 90 \text{ Coulombs} \).


  • Given time interval \( t = 30 \text{ seconds} \).


  • Current \( I = \frac{90}{30} = 3 \text{ Amperes} \).


Why other options are incorrect:

  • Opt B: Mathematical decimal error.


  • Opt C & D: Unnecessary and incorrect use of milli (\(10^{-3}\)) prefix.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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