- #1

- 222

- 0

## Homework Statement

The question actually asks for the equation for the magnetic field for the rotating disc; but all I'm after is the direction of the magnetic field.

## Homework Equations

None were given; but I've been using:

[tex] \nabla \times \vec{E} = -\frac{\partial \vec{B}}{\partial t}[/tex]

## The Attempt at a Solution

When I use the above equation I get two components to the magnetic field: [tex]\hat{r}[/tex] and [tex]\hat{\theta}[/tex]. That doesn't really make a lot of sense to me. What am I missing?