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प्रश्न
A metal plate can be heated by ______.
विकल्प
passing either a direct or alternating current through the plate.
placing in a time varying magnetic field.
placing in a space varying magnetic field, but does not vary with time.
both passing either a direct or alternating current through the plate and placing in a time varying magnetic field are correct.
MCQ
रिक्त स्थान भरें
उत्तर
both passing either a direct or alternating current through the plate and placing in a time varying magnetic field are correct.
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