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State Lenz's law....

State Lenz's law.

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According to Lenz.s law, induced emf or current is always produced in a direction such that it opposes the cause of its generation.
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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-Exercise (Very Short Answer Questions)
  1. Name the scientists who discovered the generation of electric current ...

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  2. Name the scientist associated with the direction of induced current.

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  3. State Lenz's law.

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  4. Why the induced emf is also called as back emf?

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  5. What is the basic cause of induced emf?

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  6. Does Lenz's law violate the law of conservation of energy?

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  7. Does Lenz's law hold for an open circuit

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  8. Consider a cube ABCGHIJK of sides a placed in a uniform magnetic field...

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  9. Who discovered eddy current?

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  10. What is an ideal inductor?

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  11. Name the quantity that plays an identical role in an electrical circui...

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  12. On which of the following factors the emf induced in the coil does not...

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  13. Name two factors on which the self-inductance of an air-core coil depe...

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  14. What is the effect of metallic core on self inductance?

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  15. Why inductors are made of copper?

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  16. Name two factors on which mutual inductance between a pair of coils de...

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  17. If two coils are very tightly would one over the other, will M increas...

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  18. What are the dimensions of L/R?

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  19. Why the inductance per unit length for a solenoid near its centre is d...

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  20. An artificial satellite with a metal surface is orbiting the earth in ...

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