Question

Find the magnetic field at the point O

Answer 1

Answer:

Hello mate ✌️

Explanation:

Magnetic field at the center due to a current carrying circular part is given by,

B=

2πr

μ

0

Iθ

θ

1

=

2

π

, θ

2

=

2

3π

r

1

=a, r

2

=b

∴B=

2πr

1

μ

0

Iθ

1

+

2πr

2

μ

0

Iθ

2

=

2π×a×2

μ

0

I

×π+

2πb

μ

0

I

×

2

3π

B=

4a

μ

0

I

+

4b

3μ

0

hope it will be helpful to you ✌️✌️