Question:
What is the SI unit of Magnetic Induction?
What is the SI unit of Magnetic Induction?
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Magnetic field units to remember:
Magnetic flux \( \Phi \) → Weber (W)
Magnetic induction \( B \) → Tesla (T)
\[
1\,T = 1\,\frac{Wb}{m^2}
\]
Updated On: Apr 23, 2026
- Weber
- Tesla
- Henry
- Coulomb
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The Correct Option is B
Solution and Explanation
Concept:
Magnetic Induction (also called Magnetic Flux Density) is represented by \(B\).
It measures the strength of a magnetic field over a given area.
It is defined as magnetic flux per unit area:
\[
B = \frac{\Phi}{A}
\]
where
• \(B\) = Magnetic induction
• \(\Phi\) = Magnetic flux
• \(A\) = Area perpendicular to the field The SI unit of magnetic flux is Weber (Wb). Therefore, \[ \text{Unit of } B = \frac{\text{Weber}}{\text{m}^2} \] This unit is called the Tesla (T).
Step 1: Use the definition of magnetic induction. \[ B = \frac{\Phi}{A} \]
Step 2: Substitute SI units. \[ B = \frac{\text{Weber}}{\text{m}^2} \]
Step 3: Identify the named SI unit. \[ 1 \text{ Tesla} = 1 \frac{\text{Weber}}{\text{m}^2} \] Thus the SI unit of magnetic induction is \[ \boxed{\text{Tesla (T)}} \]
• \(B\) = Magnetic induction
• \(\Phi\) = Magnetic flux
• \(A\) = Area perpendicular to the field The SI unit of magnetic flux is Weber (Wb). Therefore, \[ \text{Unit of } B = \frac{\text{Weber}}{\text{m}^2} \] This unit is called the Tesla (T).
Step 1: Use the definition of magnetic induction. \[ B = \frac{\Phi}{A} \]
Step 2: Substitute SI units. \[ B = \frac{\text{Weber}}{\text{m}^2} \]
Step 3: Identify the named SI unit. \[ 1 \text{ Tesla} = 1 \frac{\text{Weber}}{\text{m}^2} \] Thus the SI unit of magnetic induction is \[ \boxed{\text{Tesla (T)}} \]
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