Physics Electrostatics SZABMU 2024
PMDC Verified Question 2 of 131
Q.179 Electron-volt is the unit of
A
Charge
B
Current
C
Electric potential
D
Energy
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Energy
1. Concept:

An electron-volt (eV) describes the work done (or kinetic energy gained) when a single electron is accelerated through a potential difference of exactly one volt.

2. Formula:

$$ W = q \Delta V \implies 1 \text{ eV} = 1.6 \times 10^{-19} \text{ J} $$

3. Solution:

  • Because it equates directly to a tiny fraction of a Joule, it is fundamentally a unit of Energy, heavily used in atomic and particle physics.


4. Why other options are incorrect:

Charge is measured in Coulombs. Current is measured in Amperes. Electric potential is measured in Volts. The 'volt' in the name often tricks students into guessing Option C.

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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