Question

Unit of Magnetic flux is

• A. dyne
• B. weber
• C. oersterd
• D. gauss

Answer 1

The Correct Option is B

To solve the problem, we need to identify the correct unit of magnetic flux.

1. Definition of Magnetic Flux:
Magnetic flux ($\Phi$) is the total magnetic field passing through a given area. It is a scalar quantity and is mathematically given by:

$ \Phi = B \cdot A \cdot \cos \theta $
where:
$B$ = magnetic field
$A$ = area
$\theta$ = angle between $B$ and normal to the surface

2. SI Unit of Magnetic Flux:
The SI unit of magnetic flux is the weber (Wb).

3. Understanding the Options:
- dyne: unit of force
- weber: unit of magnetic flux ✅
- oersted: unit of magnetic field strength
- gauss: unit of magnetic field (CGS system)

Final Answer:
The unit of magnetic flux is $ \text{weber} $.