Physics Electrostatics SZABMU 2022
PMDC Verified Question 70 of 131
Q.130 The SI unit of potential difference is:
A
Volt
B
Coulomb
C
Watt
D
eV
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Volt
1. Concept:

Potential difference is the measure of the work done to move a unit of charge. The standardized unit honors Alessandro Volta.

2. Formula:

$$ 1 \text{ Volt} = 1 \frac{\text{Joule}}{\text{Coulomb}} $$

3. Solution:

  • By definition within the International System of Units (SI), the unit of electric potential and potential difference is the Volt.


4. Why other options are incorrect:

Coulomb is the unit of charge. Watt is the unit of power. Electron-volt (eV) is a non-SI unit of energy.

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