Question

Describe an activity to determine the direction of magnetic field produced by a current carrying straight conductor. Also show that the direction of the magnetic field is reversed on reversing the direction of the current

Answer 1

Just perform flemings right hand rule in st conductor ...simple if you reverse  direction of flow of current reverses vise-versa

Answer 2

By using right hand thumb rule u can show that relation between direction of current and direction of magnetic field...

The thumb shows the direction of current and other fingers show the direction of magnetic field ...

Hope this may help u

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