Question

What is the magnitude of the magnetic field created 4.0m away from a 10.0 A current?

Answer 1

The magnitude of the magnetic field created is 5 x 10⁻⁷ T

Step-by-step explanation:

Given;

magnitude of current, I = 10.0 A

distance of the magnetic field, r = 4.0m

Apply Biot-Savart Law to determine the magnitude of of the magnetic field created;

`B = (\mu_oI)/(2 \pi r)`

where;

B is the magnitude of of the magnetic field

μ₀ is constant

I is current

r is the distance of the field

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

Therefore, the magnitude of the magnetic field created is 5 x 10⁻⁷ T