Question

Which one of the following is NOT a unit of magnetic field?

• A. tesla
• B. weber/meter\(^2\)
• C. newtompere-meter
• D. newtompere\(^2\)

Hint:

Magnetic field units: \[ 1 \, \text{T} = 1 \, \frac{\text{Wb}}{\text{m}^2} = 1 \, \frac{\text{N}}{\text{A} \cdot \text{m}}. \]

Answer 1

The Correct Option is D

The units of magnetic field (magnetic flux density \( \mathbf{B} \)) include:

Tesla (T),
Weber per square meter (Wb/m\(^2\)),
Newton per ampere-meter (N/(A·m)).
These units are equivalent and commonly used to express the magnetic flux density. However, newton per ampere squared (\(^2\)) is not a unit of magnetic field. Instead, \( \text{}^2 \) corresponds to the unit of magnetic permeability or related magnetic properties, but it does not represent magnetic flux density.