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A generator supplied power to a factory through cables of total resistance 20Ω. The potential difference at the generator is 5kV and the power output is 50kW. The potential difference of the supply mains at the factory is-

A

5kV

B

4.4kV

C

4.8kV

D

4.6kV

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UNITED BOOK HOUSE-MODEL PAPER SET-14-EXERCISE
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  10. The de Broglie wavelength of a proton and an electron are same, then w...

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  13. Two cells having emf l.5Vand 2V have internal resistance 0.2 Omega and...

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  14. A generator supplied power to a factory through cables of total resist...

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  15. A 20 Omega wire is used to supply current in a'circuit. If 5000V be th...

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  16. Define Mutual inductance.

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  17. The rate change of flux change inside on core of self inductance 0.5 H...

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  19. A pure inductive coil is connected between the sides of an AC source....

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