In a single wire, how much current would be required to generate 1 Tesla magnetic field at a 2 meter distance away from the wire?

12.56 A.

Explanation:

The magnetic field of a conductor carrying current is give as

H = I/2πr ... Equation 1

Where H = Magnetic Field, I = current, r = distance, and π = pie

Making I the subject of the equation,

I = 2πrH ... Equation 2

Given: H = 1 T, r = 2 m.

Constant: π = 3.14

Substitute into equation 2

I = 2*3.14*2*1

I = 12.56 A.

Hence, the magnetic field = 12.56 A.