The magnetic field at 8 cm distance from a long straight wire, carrying is 0.2x10^-5 t. how much is the electric current in the wire?

The electric current in the wire is 0.8 A

Explanation:

We solve this problem by applying the formula of the magnetic field generated at a distance by a long and straight conductor wire that carries electric current, as follows:

B= Magnetic field due to a straight and long wire that carries current

u= Free space permeability

I= Electrical current passing through the wire

a  = Perpendicular distance from the wire to the point where the magnetic field is located

Magnetic Field Calculation

We cleared (I) of the formula (1):

Formula(2)

a  =8cm=0.08m

We replace the known information in the formula (2)

I=0.8 A

The electric current in the wire is 0.8 A

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation: