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To induce an e.m.f. in a coil, the magne...

To induce an e.m.f. in a coil, the magnetic flux

A

must increase

B

must decrease

C

remains constant

D

can increase or decrease

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CHETANA PUBLICATION-Electromagnetic Induction-EXERCISE
  1. The phenomenon of producing an induced e.m.f. in a conductor due to th...

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  2. Faraday's laws of electromagnetic induction is related to

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  3. To induce an e.m.f. in a coil, the magnetic flux

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  4. The co-efficient of self induction of a coil is the ratio of

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  5. The S.I. unit of inductance Henry can be written as

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  6. The number of turns in primary and secondary coil of transformer are 1...

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  7. Lenz's law is in accordance with law of conservation of

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  8. Magnetic flux associated with area element ds kept in magnetic inducti...

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  9. Induced e.m.f. produced in the coil is 4mV. What is the change in flux...

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  10. Foucault's current is also

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  11. What is SI unit of magnetic flux density?

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  12. Why induced emf is called back emf?

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  13. What is SI unit of self inductance?

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  14. Write a short note on generator.

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  15. State Faraday's laws of electromagnetic induction.

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  16. A straight conductor is moving with a velocity of 18 km//hr at right a...

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  17. The primary of transformer has 5000 turns and works on 400V and 100 Wa...

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  18. Define mutual induction state its unit and dimension

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  19. What are eddy currents? State applications of eddy currents?

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  20. Explain why the inductance of two coils connected in parallel is less ...

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