Question

Describe how a bar magnet can be used to show the direction

Answer 1

Place the bar magnet on a paper then drop iron filling on bar magnet and drop out extra filling filling automatically show the direction of magnetic field

Answer 2

if the bar magnet take near the loop and if u see the loop is showing current direction in opposite to the bar magnet and the bar magnet showing deflection towards the loop then we can say that current is flowing in anticlockwise..
and when u take the bar magnet near the loop if the bar magnet is away from the loop then the current moves clockwise direction that means in accordance with Faraday's law it opposes the current flowing in which direction u take it...
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