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At the time of a short circult, the cu...

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

A

reduces substantially

B

does not change

C

increases heavily

D

varies continuously

Text Solution

Verified by Experts

The correct Answer is:
C
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ZEN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT -Textual exercise
  1. The device used for producing electric current is called

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  2. The essential difference between an AC generator and a DC generator ?

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

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  4. State wheteher the following statements are true of false.

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  5. List two methods of producing magnetic fields.

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  6. How does a solenoid behave like a magnet ? Can you determine the nor...

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  7. When is the force experienced by current carrying conductor placed in ...

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  8. Imagine that you are sitting in a chamber with your back to one wall. ...

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  9. Draw a labelled diagram of an electric motor. Explain its principle an...

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  10. Name some devices in which electric motors are used.

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  11. A coil of insulated copper wire is connected to a galvanometer. What ...

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  12. Two circular coils A and B are place close to each other . If the curr...

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  13. State the rule to determine the direction of a : [i] Magnetic fiel...

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  14. Explain the underiying and working of an electric generator by drawin...

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  15. Draw the diagram of a simple electric generator. Label the following p...

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  16. When does an electric short circuit occur ?

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

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  18. Which of the following correctly describes the magnetic field near a ...

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  19. The phenomenon of electromagnetic induction is

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  20. The device used for producing electric current is called

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