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The essential difference between an AC g...

The essential difference between an AC generator and a DC generator is that:

A

AC generator has an electromagnet while a DC generator has a permanent magnet

B

DC generator will generate higher voltage.

C

AC generator will generate higher voltage.

D

AC generator has slip rings while the DC generator has a commutator.

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MBD -HARYANA BOARD-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXAMPLE
  1. The phenomenon of electromagnetic induction is :

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  2. The device used for producing electric current is called a:

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  3. The essential difference between an AC generator and a DC generator is...

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

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  5. State whether the following statement is true or false : An electric...

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  6. List three sources of magnetic fields.

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  7. How does a solenoid behave like a magnet? Can you determine the north ...

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  8. When is the force experienced by a current-carrying conductor placed i...

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  9. Imagine you are sitting in a chamber with your back to one wall. An el...

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

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

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

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

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  14. A coil of insulate copper wire is connected to a galvanometer. What wi...

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  15. Two circular coils A and B are placed close to each other. If the curr...

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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 me...

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  18. In case of a solenoid, the strength of magnetic field depends upon

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  19. What is an electromagnet?upon what factors its strength depends?

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  20. The circulating induced current produced in a metal plate due to the c...

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