A metal plate can be heated by
A. passing either a direct or alternating current through the plate.
B. placing in a time varying magnetic field.
C. placing in a space varying magnetic field, but does not vary with time.
D. both (a) and (b) are correct.
Answer:A
A metal plate can be heated by
A. passing either a direct or alternating current through the plate. B. placing in a time varying magnetic field. C. placing in a space varying magnetic field, but does not vary with time. D. both (a) and (b) are correct.