electromagnetic fields and microwaves

Endersworld

I need some help with properties of electromagnetic fields in the presence of microwaves. specifically will a electromagnets field, powered by an external power supply, function normally in a microwave chamber?
Will the magnetron induce a current in the copper coil?
Would the external power supply work over that, basically ignoring any power trying to be pushed back through the wire?

berkeman

Welcome to the PF.

Why are you putting metal inside of a microwave oven?

Endersworld

Its an electromagnet, and its meant to contain the plasma im generating.