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Ratio of number of turns in primary and ...

Ratio of number of turns in primary and secondary coil of 440V-22000V step up transformer is

A

0.50347222222222

B

2.4173611111111

C

1:50

D

200:1

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The correct Answer is:
1:50
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PUNJAB BOARD PREVIOUS YEAR PAPERS-ELECTRICAL DEVICES-EXERSICE
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  2. How transformer is helpful in transferring electric power from generat...

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  3. Ratio of number of turns in primary and secondary coil of 440V-22000V ...

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  4. What are the factors which reduce the efficiency of a transformer ?

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  5. How are the energy losses reducedin a transformer ?

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  6. Draw a labelled diagram of a.c.generator.

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  7. Explain principle and theory of Transformer with the help of diagram.

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  8. Draw the labelled diagram of an a.c.generatpr.Write the principle on w...

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  9. State the principle of electric generator

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  10. Explain principle and theory of Transformer with the help of diagram.

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  11. Draw the labelled diagram of an a.c.generatpr.Write the principle on w...

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  12. Give the principle, construction and labelled diagram of AC generator.

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  13. Give the principle of a transformer, construction of a stepdown transf...

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  14. Give the principle of a transformer, construction of a stepdown transf...

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  15. Why soft iron is used in making the core of a transformer ?

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  16. Draw the labelled diagram of an a.c.generatpr.Write the principle on w...

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  17. Explain principal,construction and working of D.C.generator.

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  18. Explain principle and theory of Transformer with the help of diagram.

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  19. With the help of labelled diagram, describe the principle,construction...

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  20. Explain principal,construction and working of D.C.generator.

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