Question:
The SI unit of magnetic flux density (B) is:
The SI unit of magnetic flux density (B) is:
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Remember: Weber is the "Total Flux," while Tesla is the "Density" (Flux per square meter).
Updated On: May 5, 2026
- Weber
- Tesla
- Henry/metre
- Gauss
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The Correct Option is B
Solution and Explanation
Step 1: Concept
Magnetic flux density ($B$) represents the amount of magnetic flux through a unit area taken perpendicular to the direction of the magnetic field.
Step 2: Meaning
It is also known as magnetic induction or simply the magnetic field strength. It is calculated as $\frac{\Phi}{A}$, where $\Phi$ is magnetic flux.
Step 3: Analysis
Weber (Wb) is the unit of magnetic flux, not density. Gauss is a CGS unit of magnetic flux density ($1 \text{ Tesla} = 10^4 \text{ Gauss}$). Henry/metre is the unit for permeability. Tesla (T) is the standard SI unit.
Step 4: Conclusion
Thus, the international standard (SI) unit for $B$ is the Tesla. Final Answer: (B)
Magnetic flux density ($B$) represents the amount of magnetic flux through a unit area taken perpendicular to the direction of the magnetic field.
Step 2: Meaning
It is also known as magnetic induction or simply the magnetic field strength. It is calculated as $\frac{\Phi}{A}$, where $\Phi$ is magnetic flux.
Step 3: Analysis
Weber (Wb) is the unit of magnetic flux, not density. Gauss is a CGS unit of magnetic flux density ($1 \text{ Tesla} = 10^4 \text{ Gauss}$). Henry/metre is the unit for permeability. Tesla (T) is the standard SI unit.
Step 4: Conclusion
Thus, the international standard (SI) unit for $B$ is the Tesla. Final Answer: (B)
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