Answer :
When using the right-hand rule to determine the direction of the magnetic field around a current-carrying wire, follow these steps:
1. **Hold your right hand**: Extend your right hand in a way that your thumb, forefinger, and middle finger are perpendicular to each other.
2. **Thumb points in the direction of the current**: Make sure that your thumb is pointing in the direction of the current flow in the wire.
3. **Fingers show the magnetic field direction**: Your fingers wrapped around the wire will indicate the direction of the magnetic field lines around the wire.
By following these steps, you can determine the direction of the magnetic field around a current-carrying wire using the right-hand rule.