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A compass needle is placed in the gap of...

A compass needle is placed in the gap of a parallel plate
capacitor. The capacitor is connected to a battery
through a resistance. The compass needle

A

Remains un - deflecteed .

B

Gets deflected and remains in deflected position as long as battery is connected .

C

Gets deflected for a very short time and then it quickly comes back to original position .

D

Gets deflected and slowly comes back to original position as charging gets over.

Text Solution

Verified by Experts

The correct Answer is:
D
During the charging process, displacement current flows in between the plates of capacitor which creates magnetic field. Magnetic field vanishes when charging is over and steady state is achieved.
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MODERN PUBLICATION-ELECTROMAGNETIC WAVES-COMPETITION FILE -OBJECTIVE TYPE QUESTIONS ( MULTIPLE CHOICE QUESTIONS )(A )
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  3. Which one of the following can produce electromagnetic waves?

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  6. A compass needle is placed in the gap of a parallel plate capacitor....

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  7. Which of the following is not transported by electromagnetic waves?

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  11. An electromagnetic wave going through vacuum is described by E= E0 s...

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  12. A plane electromagnetic wave is incident on a material surface. The wa...

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  13. Electromagnetic wave is deflected by

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  14. Consider the following two statements regarding a linearly polarized, ...

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  15. Which of the following factors affects speed of electromagnetic...

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  16. Displacement current is produced between the plates of a capaci...

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  17. An electric field (vec E) and a magnetic field (vec B)exist in a regio...

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  18. Which of the following represents correct dimensional formula of 1...

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  19. which one of the following represents correct dimensional formul...

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