Explain the production of a magnetic field due to current in a conductor by making a diagram.
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The magnetic field around a current-carrying conductor is circular and its strength increases with the current and decreases with distance from the conductor.
When an electric current flows through a conductor, it produces a magnetic field around the conductor. The strength of the magnetic field depends on the amount of current flowing and the distance from the conductor.
Production of Magnetic Field:
1. Straight Conductor: When a current-carrying conductor is placed in space, a magnetic field is produced around it in the form of concentric circles.
2. Right-Hand Rule: The direction of the magnetic field around the conductor can be determined using the right-hand rule:
- Point your right thumb in the direction of the current.
- The curl of your fingers shows the direction of the magnetic field lines.
Diagram: Explanation:
In the diagram:
- The straight conductor carries a current.
- The magnetic field lines are shown as concentric circles around the conductor.
- The direction of the magnetic field is determined using the right-hand rule.
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