Springs and currents Question

[Sam_The_Great]

I have the following problem on which I am unsure how to proceed.

A spring with a spring constant K = 20 N/m is shown below. It is stretched 1 cm from its equilibrium position when a current I passes through the wire. How big is the current in the wire?

The magnetic field is coming out of the page and is B = .5T, the length of the area is 20cm.
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[Doc Al]

You'll need to know the force on a current-carrying wire in a magnetic field: F = ILB, assuming the field is perpendicular to the wire. And you'll need to know about springs: F = -kx.

[Sam_The_Great]

Thanks alot