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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 permanent magnet.

B

DC generator will generate a higher voltage.

C

AC generated will generate a higher voltage.

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  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. When the switch S is closed in the figure given below, the pointer of ...

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  5. Each one of the following changes will increase emf (or voltage) in a ...

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  6. An electric generator converts :

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  7. A d.c. generator is based on the priciple of :

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  8. An idduced emf is produced when a magnet is plunged into a coil. The m...

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  9. The frequency of direct current (d.c.) is :

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  10. The frequency of alternating current (a.c.) supply in India is :

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  11. When the magnet shown in the diagram below is movoing towards the co...

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  12. If you hold a coil of wire next to a magnet,no current will flow i...

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  13. The wire in Figure below is being moved downwards through the mag...

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  14. Two coils A and B of insulated to wire are kept close to each ...

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  15. A portable radio has a built in transformer so that it can work f...

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  16. What name is given to the device which automatically cuts off the ...

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

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  18. Given the symbol of an electric fuse used in circuit diagrams.

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  19. State whether the following statements are ture of false: (a) A wi...

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  20. What is the advantage of the third wire of each connection in domestic...

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