State the relation between magnetic length and geometric length of a m

1.	State the relation between magnetic length and geometric length of a magnet. Also State the relation between magnetic field due to a bar magnet at a point along its axis and equator.
Answer» EXPLANATION: By calculating the axial field of a finite solenoid carrying current, a bar magnet can be demonstrated as a solenoid. CONSIDER a solenoid of radius a and length 2l with n NUMBER of turns PER unit length that has current I PASSING through the solenoid. Considering a small element of thickness dx of the solenoid at distance x from O such that OP = r.

State the relation between magnetic length and geometric length of a magnet. Also State the relation between magnetic field due to a bar magnet at a point along its axis and equator.

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By calculating the axial field of a finite solenoid carrying current, a bar magnet can be demonstrated as a solenoid. CONSIDER a solenoid of radius a and length 2l with n NUMBER of turns PER unit length that has current I PASSING through the solenoid. Considering a small element of thickness dx of the solenoid at distance x from O such that OP = r.

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State the relation between magnetic length and geometric length of a magnet. Also State the relation between magnetic field due to a bar magnet at a point along its axis and equator.​

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State the relation between magnetic length and geometric length of a magnet. Also State the relation between magnetic field due to a bar magnet at a point along its axis and equator.