Okay, consider it to be a copper square that is 20 cm wide, 0.4cm thick, 20 cm long. Its resistance is about 4.2x10^-5 Ω, inductance : 56 nH , magnetic field is a 0.5T uniform field from an electromagnet.
Voltage should be: 0.0000042Ω x 1000A = 0.0042VoltsDC. Imagine the magnetic field changing contniously(however you would like to imagine it going on/off or rotating next to conductor). However, the change is massive. delta(BA)/delta(t) = 0.5Tx0.4m^2/0.100s = -2VDC induced back-emf.
What is the factor of power jump here? From 0.0042VDC x 1000A = 4.2W to what...?
I hope this is a reasonable example, if you need to please adjust it! for frequency I dont know why it's needed since it's a DC circuit?