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At the time of short circuit,the current...

At the time of short circuit,the current in the circuit.

A

reduces substantially

B

does not change

C

incrases heavily

D

varies continuously

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
  1. A long solenoid carrying a current produces a magnetic field B along i...

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  2. The device used for producing electric current is

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  3. At the time of short circuit,the current in the circuit.

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  4. State whether the following statements are true or false: An electric ...

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  5. True or false A constant magnetic flux in a coil can induce current in...

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  6. True or false AC is more dangerous as compared to DC.

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  7. True or false AC is the best suitable for electroplating.

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  8. True or false The function of a fuse wire depends on its length.

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  9. Fill ups Electromagnetic induction is the phenomenon of converting…………...

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  10. Fill ups Fleming's left hand rule enables us to find the direction of ...

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  11. Fill ups ……………..cannot be used for electroplating.

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  12. Fill ups Live wire has …………….coloured insulation.

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  13. Fill ups Short circuiting occurs when live and………………wires come in cont...

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  14. When does an electric short circuit occur?

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  15. Which sources produce alternating current?

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  16. What is the principle of working of an A.c generator?

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  17. What is the function of earth wire? Why is it necessary to earth metal...

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  18. With the help of magnetic field lines how can you find the direction a...

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  19. On what factors does the force acting on a ccharged particle movin in ...

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  20. Draw magnetic field lines for a straight current carrying conductor. O...

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