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A metal plate is getting heated. It can ...

A metal plate is getting heated. It can be because

A

A direct current is passing through the plate

B

It is placed in a time varying magetic field

C

It is placed in a space varying magnetic field, but does not vary with time

D

A current (either direct or alternating) is passing through the plate

Text Solution

Verified by Experts

The correct Answer is:
A,B,D
A metal plate is getting heated when a DC or AC current is passed through the plate, known as heating effect of current. Also, when metal plate is subjected to time varying magnetic field. The magnetic flux, linked with the plate changes and eddy currents comes into existance which make the plate hot.
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NCERT EXEMPLAR-ELECTROMAGNETIC INDUCTION -Electromagnetic Induction
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  2. The self inductance L of a solenoid of length l and area of cross-sect...

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  3. A metal plate is getting heated. It can be because

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  4. An e.m.f. is produced in a coil, which is not connected to an external...

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  5. The mutual inductance M(12) of coil 1 with respect to coil 2

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  6. A circular coil expands radially in a region of magnetic field and no ...

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  7. Consider a magnet surround by a wire with an on// of switch S (figure)...

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  8. A wire in the form of a tightly would solenoid is connected to a DC so...

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  9. A solenoid is connected to a battery so that a steady current flows th...

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  10. Consider a metal ring kept on top of a fixed solenoid (say on a carboa...

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  11. Consider a metal ring kept on top of a fixed solenoid (say on a carboa...

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  12. Consider a metallic pipe with an inner radius of 1 cm. If a cylindrica...

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  13. A magnetic field in a certain region is given by B = B(0) cos (omega t...

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  14. Consider a closed loop C in a magnetic field, Fig. The flux passing th...

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  15. Find the current in the wire PQ for the configuration shown in Fig. Wi...

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  16. A (current vs time) graph of the current passing through a solenoid is...

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  17. There are two coils A and B seperated by some distance. If a current o...

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  18. A magnetic field B = B(0) sin (omega t) hat k covers a large region wh...

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  19. A conducting wire XY of mass M and negligible resistance slides smothl...

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