Physics · JEE | Magnetism and Matter
हिन्दीMatch List-I with List-II: List-I List-II A Dipole moment I \( -\mathbf{m} \cdot \mathbf{B} \) B Torque in external field II \( \mathbf{m} \times \mathbf{B} \) C Potential energy in external field III \( \mathbf{m} \) D Axial field for a short dipole IV \( \frac{\mu_0 2m}{4\pi r^3} \) Choose the correct answer from the options given below:
Match List-I with List-II:
| List-I | List-II | ||
|---|---|---|---|
| A | Dipole moment | I | \( -\mathbf{m} \cdot \mathbf{B} \) |
| B | Torque in external field | II | \( \mathbf{m} \times \mathbf{B} \) |
| C | Potential energy in external field | III | \( \mathbf{m} \) |
| D | Axial field for a short dipole | IV | \( \frac{\mu_0 2m}{4\pi r^3} \) |
Choose the correct answer from the options given below:
View Answer & Solution
Correct answer · Option B
A-(III), B-(II), C-(I), D-(IV)
Explanation
Dipole moment is \( \mathbf{m} \), torque is \( \mathbf{m} \times \mathbf{B} \), potential energy is \( -\mathbf{m} \cdot \mathbf{B} \), and axial field is \( \frac{\mu_0 2m}{4\pi r^3} \).