Question

The field due to a long straight wire carrying a current i is proportional to

Answer 1

We know that magnetic force due to a long straight wire at X m away is

U° I/(2πd)

Where u° is permittivity

Therefore

B directly proportional to I

I hope it helps you ❤️

Answer 2

Answer:

Explanation:

Instead of the field being proportional to the inverse square of the distance, as is the electric field from a point charge, the magnetic field is inversely proportional to the distance from the wire.