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A transformer is a device which conv...

A transformer is a device which converts

A

low voltage at low current into high voltage at high current

B

high voltage at low current into low voltage at high current

C

high voltage at high current into low voltage at low current

D

electrical power into mechanical power

Text Solution

Verified by Experts

The correct Answer is:
B

Transformer is a device used to convert high alternating voltage at low current into low alternating voltage at high current and vice -versa.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MHTCET 2012-PHYSICS
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  3. A transformer is a device which converts

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  5. If the conductance and capacitance are both doubled in L-C-R cir...

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  6. The power factor is an L-C-R circuit at resonance is

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  7. If the power factor in a circuit is unity, then the impedance ...

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  8. One complete set of negative and positive values of alternating...

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  9. The instantaneous value of an AC is given by I = 5 sin ( ome...

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  10. Inductive reactance of a coil is expressed in

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  11. The average value of alternating current over a complete cycle ...

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  12. An inductor may store energy in

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  13. Two different coils have self indutance 8 mH and 2 mH. The cu...

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  14. Two coils of self-inductance L(1) and L(2) are placed closed to each o...

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  15. Two coils of self-inductance L(1) and L(2) are placed closed to each o...

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  16. The instrument which works on the principle of mutual inductan...

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  17. What is the self inductance of a coil in which an induced emf...

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  18. Lenz's law is a consequence of law of conservation of

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