What is the magnetic flux density (b-field) at a distance of 0.36 m from a long, straight wire carrying a current of 3.8 a in air? give your answer in units of tesla.

The magnetic flux density is

Explanation:

Given that,

Distance = 0.36 m

Current = 3.8 A

We need to calculate the magnetic flux density

Using formula of magnetic field

Where,

r = radius

I = current

Put the value into the formula

Hence, The magnetic flux density is

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.