Question

The magnetic field inside a toroid is uniform. a. True b. False

Answer 1

The concept that must be applied to solve this problem is that of the magnetic field on Toroid described since the law of Ampere. Mathematically the magnetic field is determined as

$B = \frac{\mu_0 NI}{2\pi r}$

Where

$\mu_0$= Permeability constant

N = Number of loops

I = Current

r = Radius

As we can see the magnetic field inside a Toroid is NOT uniform, since it is highly proportional to the radius. Which means that as the radius increases the magnetic field decreases.

Therefore the correct answer is: FALSE