Question

Calculate the magnetic field at 2m from a straight wire carrying a current of 5 A. (K = 2 x 10 ^-7)

Answer 1

`B=5* 10^(-7)\ T`

Step-by-step explanation:

Given that,

Current in a wire, I = 5 A

We need to find the magnetic field at 2m from a straight wire carrying a current of 5 A.

The magnetic field due to a wire is given by :

`B=(\mu_0I)/(2\pi r)\\\\B=(4\pi * 10^(-7)* 5)/(2\pi * 2)\\\\B=5* 10^(-7)\ T`

So, the required magnetic field is
`5* 10^(-7)\ T`.