Wednesday, 19 June 2013

A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is (i) pushed into the coil

Q. No 13: A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is (i) pushed into the coil, (ii) withdrawn from inside the coil, (iii) held stationary inside the coil?
Ans: (i) when magnet is pushed near a bar magnet then it induces current due to electromagnetic induction.
(ii) When the bar magnet is withdrawn from inside the coil of the insulated copper wire again the current is induced in the coil but this time it is in reverse direction.

(iii) When a bar magnet is held stationary inside the coil then no current is induced that’s why galvanometer will show no deflection. 
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16 comments:

  1. GanpatiEngineering25 November 2014 at 02:25

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  2. Ganpati wires17 February 2015 at 01:50

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  3. Unknown25 October 2015 at 13:52

    Thank you ncert
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  4. Unknown25 October 2015 at 14:32

    Thank you ncert
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  5. Unknown12 November 2017 at 04:25

    Thanks very much it is very use full to me

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  6. Unknown7 July 2018 at 22:10

    nice hart who has given the ans from his or her time

    ReplyDelete
  7. Unknown11 August 2018 at 07:52

    Thank for information

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  8. Unknown27 August 2018 at 22:31

    Thanks very much it is very useful to me

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  9. Unknown8 November 2018 at 21:56

    Thankyou for this tyep of information this is very useful

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  10. Unknown8 November 2018 at 21:56

    Thankyou for this tyep of information this is very useful

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  11. Unknown1 December 2018 at 07:58

    :-D

    ReplyDelete
  12. Samayara9 December 2018 at 06:51

    in answer 1st you have written "when a magnet is pushed near a bar magnet" does it even make a sense ? think before you write :)

    ReplyDelete
  13. Unknown21 January 2019 at 06:46

    Thanks a lot

    ReplyDelete
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