Question

the magnetic field produced at the centre of circular coil is directly proportional to......

Answer 1

is directly proportional to force

Answer 2

The magnetic field produced at the centre of circular coil is directly proportional to current.

Explanation:

• The magnetic field produced at the centre of circular coil is given by :

• $B=\dfrac{\mu_o I}{2r}$

• I is electric current and r is distance from coil

• It is clear that the magnetic field produced at the centre of circular coil is directly proportional to the current and inversely proportional to the distance from coil.

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