Question

With the help of a diagram, describe an activity in brief to show that a current-carrying straight conductor produces a magnetic field around it.

Answer 1

• Take a rectangular sheet and attach a wire and a cell as shown in the diagram.
• Take a few iron filings and place them on the sheet.
• Switch on the circuit.
• Notice that iron fillings will arrange in circular shapes around the wire.
• This confirms that the wire is showing magnetic properties.
• Use a magnetic compass and keep it near the wire; it changes its direction based on the direction of the current.