Question

A solenoid had 1040 turns and is 4.4 cm long. If it carries a current of 31 A, what is the magnetic field it creates?

Answer 1

.92 T

Step-by-step explanation:

This is just a plug-and-chug question.

Here is the formula: B = uni

u = vacuum permeability = 4pi * 10^-7 this is a given constant

n = turns per meter = 1040/ (4.4*10^-2)

i = current = 31 A also given by the problem

so B = .92 T

The unit of the magnetic field is Tesla ("T")