COMEDK · Physics · 21. Magnetic Effects of Current
Which physical quantity has the unit joule / tesla?
- A Magnetic dipole moment
- B Magnetic permeability
- C Magnetic Induction
- D Magnetic Susceptibility
Answer & Solution
Correct Answer
(A) Magnetic dipole moment
Step-by-step Solution
Detailed explanation
The energy \(U\) of a magnetic dipole in an external magnetic field \(B\) is given by the relation \(U = -\vec{m} \cdot \vec{B}\), where \(m\) is the magnetic dipole moment and \(B\) is the magnetic induction. Rearranging this equation for the magnetic dipole moment \(m\), we…
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