Physics Electrostatics SZABMU 2022
PMDC Verified Question 68 of 131
Q.128 Electric intensity due to charge distributions are calculated using which following law?
A
Ohm's law
B
Faraday's law
C
Gauss's law
D
Ampere's law
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Gauss's law
1. Concept:

Gauss's law relates the electric flux passing through a closed surface to the charge enclosed by that surface, providing a powerful tool to calculate electric fields (intensity) for symmetrical charge distributions.

2. Formula:

$$ \oint \vec{E} \cdot d\vec{A} = \frac{Q_{enc}}{\epsilon_0} $$

3. Solution:

  • By identifying a symmetrical Gaussian surface, the integral simplifies, allowing for the direct algebraic isolation and calculation of the electric field intensity \( E \).


4. Why other options are incorrect:

Ohm's law relates voltage, current, and resistance. Faraday's law deals with electromagnetic induction. Ampere's law calculates magnetic fields from electric currents.

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 Electrostatics 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