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## Homework Statement

A square of side 2cm, in the first quadrant of the x-y plane, with a corner at the origin, is in a magnetic field pointing out of the page of magnitude 4t

^{2}y.

Calculate the emf around the square at t = 2.5s and give its direction.

## Homework Equations

[tex] \epsilon = - \frac{d}{dt} \Phi [/tex]

## The Attempt at a Solution

Do I do it like this?

[tex] \epsilon = -\frac{d}{dt} \int ^2 _0 \int ^2 _0 4t^2 y \ dx \ dy [/tex]

If so, then great. If not, what do I do?