Question

the magnetic field at a distance Y from a long wire carries current of 0.8 t find magnetic field at a distance c​

Answer 1

Answer:

ANSWER

B

1

=0.4T;

Magnetic field at a distance r for a long wire carrying current is,

BB=

2πr

μ

0

i

⇒Bα

r

1

∴

B

2

B

1

=

r

2r

B

2

0.4

=2

B

2

=0.2 T