Question

a circular coil of radius R carries a current i the magnetic field at its center is B the distance from the center on the coil where the magnetic field will be B/8 is​

Answer 1

Answer:

ug 22, 2014

Current is directly proportional to magnetic force for a straight current carrying conductor in a uniform magnetic field.

The relevant equation for the magnetic force acting on a straight current carrying conductor in a uniform magnetic field is:

F

=

B

I

L

sin

θ

So the force is directly proportional to the size of the current.

Practically this means the following:

If the current is doubled the force on the conductor will double.

If the current is is reduced to a third of the initial value the force will also reduce to a third of its initial value.

If the current is increased by five times the force will also increase by five times