Question

find out the magnetic feild at point O for the following current distribution​

Answer 1

Answer:

Circular part will be equal and in opposite to each other. So, they will cancel each other.

So, magnetic field at 0 will be due to two straight wires only.

The magnetic field will be equal and in same direction due to each straight wire.

Field due to one straight wire =B

1

=

4πR

μ0I

B

Net

=2B

1

=

2πR

μ0I

B

Net

=

2π×0.1

4π×10

−7

×5

=

0.1

10×10

−7

×10

B

Net

=10

−5

Tesla⊙outward