Physics Electromagnetism SZABMU 2023
PMDC Verified Question 14 of 58
The unit of magnetic flux is:
A
Weber (Wb)
B
Wbm
C
\( \text{Wbm}^{-1} \)
D
\( \text{Wbm}^{-2} \)
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Weber (Wb)
Concept:

Magnetic flux defines the total magnetic field cutting through a defined geometrical area. It has a specific derived SI unit.

Formula:

$$ \Phi = \int \mathbf{B} \cdot d\mathbf{A} $$

Solution:

  • The SI unit for the magnetic field \( B \) is Tesla (T).


  • The SI unit for area \( A \) is square meters (\( \text{m}^2 \)).


  • The product is \( \text{T} \cdot \text{m}^2 \).


  • In the International System of Units, this combination is given the dedicated name Weber (Wb).


Why other options are incorrect:

Options B, C, and D inappropriately attach extra distance dimensions (meters) to the Weber, creating nonsensical units that do not represent physical flux.

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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