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The output power in step-up transformer ...

The output power in step-up transformer used in practice is

A

greater than the input power

B

equal to the input power

C

less than the input power

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
The output power is step-up transfomer used in practice is less than the input power.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROMAGNETIC INDUCTION-Example 1
  1. In hertz's experiment, the rods connected with an induction coil behav...

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  2. If number of turns in primary and secondary coils is increased to two ...

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  3. The output power in step-up transformer used in practice is

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  4. A transformer having efficiency of 90% is working on 200 V and 3 kW po...

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  5. in a step-up transformer, the turn ratio is 1:2 leclanche cell (e.m.f....

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  6. The core of any transformaer is laminated so as to

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  7. How much current is drawn by the primary coil of a transformer which s...

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  8. In an ideal transfomer, the voltage is step-down from 11 kV to 220 V. ...

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  9. For a large industrial city with much load variations, the DC generato...

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  10. In an ideal transfomer, the voltage is step-down from 11 kV to 220 V. ...

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  11. When power is drawn from the secondary coil of the transformer, the dy...

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  12. An electric motor runs a D.C. source of e.m.f. 200 V and draws a curre...

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  13. In step-up transfomer, the relation between number of turns in primary...

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  14. A transformer is used to light a 140 W, 24 V lamp from 240 V AC mains....

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  15. The armature of a DC motor has 20Omega resistance. It draws a current ...

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  16. Voltage in the secondary coil of a transfomer does not depend upon

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  17. A step up transformer operates on a 230 V line and a load current of 2...

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  18. The armature of a shunt wound motor can with stand current up to 8 A b...

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  19. A step-down transformer has 50 turns on secondary and 1000 turns on pr...

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  20. A six pole generotar with fixed field excitation developes an e.m.f. o...

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