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In step-up transfomer, the relation betw...

In step-up transfomer, the relation between number of turns in primary `(N_(p))` and number of turns in secondary `(N_(S))` coils is

A

`N_(S)` is greater than `N_(p)`

B

`N_(p)` is greater than `N_(S)`

C

`N_(S)` is equal to `N_(p)`

D

`N_(p)=2N_(S)`

Text Solution

Verified by Experts

The correct Answer is:
A
In step-up transformer,number of turns in primary coil is less than the number of turns in secondary coil.
i.e. `(N_(S))/(N_(p)) gt 1`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROMAGNETIC INDUCTION-Example 1
  1. When power is drawn from the secondary coil of the transformer, the dy...

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

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

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

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

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

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

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

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

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

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  11. A step-down transfomer reduces the voltage of a transmission line from...

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  12. The e.m.f. induced in a secondary coil is 20000 V when the current bre...

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  13. A current of 5A is flowing at 220V in the primary coil of a transforme...

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  14. Eddy currents are produced when

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  15. The induced emf of a generator when the flux of poles is doubled and s...

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  16. If the coils of a transfomer are made up of thick wire, then

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  17. If a transfomer of an audio amplifier has output impedance 8000Omega a...

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  18. Which of the following is not transducer?

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  19. For high frequency, a capacitor offers

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  20. By what percentage the impedance in an AC series circuit should be inc...

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