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State Fleming's left-hand rule....

State Fleming's left-hand rule.

A

a.c. generator

B

d.c. generator

C

choke coil

D

Transformers

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The correct Answer is:
D
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Write Fleming's left hand rule.

Describe the activity that shows that a current-carrying conductor experiences a force perpendicular to its length and the external magnetic field. How does Fleming's left-hand rule help us to find the direction of the force acting on the current carrying conductor?

PRADEEP-ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT-Exercise
  1. The frequency of a.c. generated depend on

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  2. The from factor of an a.c. generator is given by

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  3. State Fleming's left-hand rule.

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  4. What is the role of the split-ring in an electric motor?

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  5. The efficiency of d.c. motor is given by eta =

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  6. A transformer is an electrical device used for

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  7. The relation (E(s))/(E(P)) = (n(s))/(n(P)) is applicable only be

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  8. A battery of 12 V is connected to primary of a transformer with turns ...

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  9. Out of the following , choose the wrong statement :

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  10. An a.c. generator is a machine that produces…………….from………………

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  11. An a.c generator is based on the phenomenon of……………………………

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  12. In hydroelectric power station,………………of falling water is converted int...

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  13. A d.c. generator produces…………………from…………………

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  14. In d.c. generator,…………………….generator of a.c. generator is replaced by…...

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  15. A d.c. motor converts ………………………into ……………………….

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  16. When a coil carrying current s …………………..it expericences ………………………….whi...

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  17. In a.c. generator, we use……………………… to determine the direction of………………...

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  18. In d.c. motor, we use……………………….to determine the direction of……………………..

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  19. A transformer is an electrical device that is used for …………………. It ………...

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  20. An a.c. generator consists of a coil of 100 turns and cross sectional ...

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