Question

why the magnetic field lines around a straight conductor is in form of concentric circle?

please answer it in detail and don't give irrelevant answers...
:)​

Answer 1

Explanation:

The magnetic field produced due to a straight current carrying conductor is in the form of concentric circles. The centre of the circles lies on the conductor itself and are in the plane perpendicular to the straight conductor. This implies that the magnetic field produced due to straight current is circular.

Answer 2

Answer:

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