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The essential difference between an A.C....

The essential difference between an A.C. generator and a D.C. generator is that

A

A.C. generator has an electromagnet while a D.C. generator has permanent magnet.

B

D.C. generator will generate a higher voltage.

C

A.C. generator will generate a higher voltage.

D

A.C. generator has slip rings while the D.C. generator has a commutator.

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U-LIKE SERIES-MAGNETIC EFFECTS OF ELECTRIC CURRENT -N.C.E.R.T.EXERCISES
  1. Which of the following correctly describes the magnetic field near a l...

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  2. The phenomenon of electromagnetic induction is

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  3. The device used for producing electric current is called a

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  4. The essential difference between an A.C. generator and a D.C. generato...

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

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  6. State whether the following statements are true or false :

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  7. List three methods of producing magnetic fields.

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

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

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

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

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

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

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

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  15. State the rule to determine the direction of a (i) magnetic field prod...

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  16. Explain the underlying principle and working of an electric generator...

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  17. When does an electric short circuit occur ?

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

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