Question:
What is the SI unit of magnetic induction?
What is the SI unit of magnetic induction?
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Magnetic field strength \(B\) is measured in Tesla (T) in SI units.
Remember: \(1\,T = 1\,\text{Weber}/m^2\).
Updated On: Apr 28, 2026
- Weber
- Tesla
- Henry
- Gauss
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The Correct Option is B
Solution and Explanation
Concept:
Magnetic induction, also known as magnetic flux density, represents the strength and direction of the magnetic field at a given point. It is denoted by \(B\).
The SI unit of magnetic induction is Tesla (T). One Tesla is defined as the magnetic field that exerts a force of one Newton on a charge of one Coulomb moving with a velocity of one meter per second perpendicular to the magnetic field.
Mathematically,
\[
B = \frac{F}{qv \sin\theta}
\]
where
\(B\) = magnetic induction,
\(F\) = magnetic force,
\(q\) = charge,
\(v\) = velocity of charge,
\(\theta\) = angle between velocity and magnetic field.
Step 1: Understanding Tesla. \[ 1\ \text{Tesla} = 1 \frac{\text{Weber}}{\text{m}^2} \] Thus, Tesla is also equivalent to Weber per square meter.
Step 2: Comparison with other units.
⢠Weber (Wb) is the unit of magnetic flux.
⢠Henry (H) is the unit of inductance.
⢠Gauss is the CGS unit of magnetic field. Therefore, the SI unit of magnetic induction is Tesla.
Step 1: Understanding Tesla. \[ 1\ \text{Tesla} = 1 \frac{\text{Weber}}{\text{m}^2} \] Thus, Tesla is also equivalent to Weber per square meter.
Step 2: Comparison with other units.
⢠Weber (Wb) is the unit of magnetic flux.
⢠Henry (H) is the unit of inductance.
⢠Gauss is the CGS unit of magnetic field. Therefore, the SI unit of magnetic induction is Tesla.
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