Question

Which physical quantity has the unit joule tesla?

• A. Magnetic permeability
• B. Magnetic Induction
• C. Magnetic Susceptibility
• D. Magnetic dipole moment

Hint:

Magnetic dipole moment can be derived from energy relation \( U = mB \), giving unit \( J/T \).

Answer 1

The Correct Option is D

Step 1: Write unit relation.
We are given unit:
\[ \frac{\text{joule}}{\text{tesla}} \]

Step 2: Recall magnetic dipole energy relation.
\[ U = mB \]

Step 3: Rearrange formula.
\[ m = \frac{U}{B} \]

Step 4: Identify units.
\[ [m] = \frac{\text{joule}}{\text{tesla}} \]

Step 5: Match with physical quantity.
This unit corresponds to magnetic dipole moment.

Step 6: Reject other options.
Other quantities have different SI units.

Step 7: Final Answer.
\[ \boxed{\text{Magnetic dipole moment}} \]