Physics Current Electricity SZABMU 2023
PMDC Verified Question 29 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 defined as the rate of flow of electric charge over time.

Formula:

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

Solution:

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


  • Time \( t = 30 \text{ s} \).


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


Why other options are incorrect:

  • Opt B: Decimal placement error.


  • Opt C & D: Using milliAmperes incorrectly assumes the charge was given in milliCoulombs or time in hours.

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.

Previous Question All Current Electricity MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App