Concept:Magnetic flux density is a measure of the concentration of magnetic field lines within a given area. It is synonymous with the magnetic field vector \( \mathbf{B} \).
Formula:$$ B = \frac{\Phi}{A} $$
Solution:- Look at the formula: \( B \) is equal to magnetic flux (\( \Phi \)) divided by Area (\( A \)).
- The SI unit for magnetic flux is the Weber (Wb).
- The SI unit for area is square meters (\( \text{m}^2 \)).
- Dividing them gives \( \frac{\text{Wb}}{\text{m}^2} \), which is expressed mathematically with a negative exponent as \( \text{Wb m}^{-2} \) (equivalent to 1 Tesla).
Why other options are incorrect:Option C is the unit for total flux, not density. Options A and D represent incorrect dimensional scaling by length rather than area.
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