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Why is magnetic field maximum at the cen...

Why is magnetic field maximum at the centre of a current-carrying coil?

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Magnetic fields due to two semicircular segments of the coil assist each other at the centre.
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PRADEEP-MAGNETIC EFFECTS OF ELECTRIC CURRENT-Additional Questions A. (very short)
  1. What is the magnitude of force acting on a current-carrying conductor ...

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  2. What important observation did Oersted make in his experiment with cur...

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  3. Why is magnetic field maximum at the centre of a current-carrying coil...

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  4. What is electromagnetic induction?

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  5. What do you mean by magnetic flux?

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  6. Name the rule which gives the direction of induced current?

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  7. Name the device which converts mechanical energy into electrical energ...

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  8. What type of dynamo is used in a bicycle?

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  9. What type of dynamo is used in industry?

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  10. What type of current is given by a cell?

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  11. What type of current is used in household supply?

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  12. How is AC different from DC?

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  13. Name the two types of wiring systems used in domestic circuits.

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  14. Which effect of electric current is used in the working of an electric...

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  15. Of what substance is a fuse wire made of?

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  16. What is the capacity of an electric fuse used in (i) lighting circuit ...

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  17. Why is a fuse wire made of tin-lead alloy?

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  18. Where do we connect a fuse: with live or with neutral wire?

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  19. What are the colours of live, neutral and earth wires?

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  20. What should be done in case a person comes in contact with a live wire...

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