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A current time curve is shown in the fol...

A current time curve is shown in the following diagrame . This type of current is passed in the primary coil of transformer . The nature of induced emf in the second ary coil will be :-

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
b
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MOTION-ELECTRO MAGNETIC INDUCTION-EXERCISE-2 (Objective problems (Analytical questions))
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  2. Two long parallel metallic wires with a resistance 'R' from a horizont...

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  3. A bar magnet is dropped between a current carrying coil. What would be...

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  4. A closed coil consists of 500 turns has area 4 cm^2 and a resistance o...

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  5. A coil of area 500cm^(2) and having 1000 turns is held perpendicular t...

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  6. A current time curve is shown in the following diagrame . This type of...

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  7. The armature coil of dynamo is in motion . The generated induced emf v...

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  8. A simple electric motor has an armature resistance of 1Omega and runs ...

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  9. A d.c motor has internal resistance 4 ohms . It is operated at 220 vol...

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  10. An electric motor runs on a d.c. source of emf epsilon and internal re...

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  11. Transformer is used to

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  12. Large transformers, when used for some time, become hot and are cooled...

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  13. For same rating which have the maximum efficiency from following :-

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  14. 2.2 किलोवाट शक्ति को 20 ओम वाली लाइन से 44000 वोल्ट पर संचारित किया जा...

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  15. If a transformer have turn tatio 5, frequency 50 Hz root mean square v...

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  16. plane of eddy currents make an angle with the plane of magnetic lines ...

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  17. Eddy currents do not produce

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  18. When a metallic sphere is moved in a magnetic field , it gets heated d...

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  19. Two copper cubes A and B composed of identical insulated plates are su...

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  20. A bar magnet is dropped into a vertical copper tube, considering the a...

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