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Why is there a difference in behaviour i...

Why is there a difference in behaviour in these two cases?

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The A.C supply changes its direction a number of times in a second. But D.C is unidirectional current. So there is a difference in the behaviour of the metal ring in these two cases.
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VGS PUBLICATION-BRILLIANT-ELECTROMAGNETISM-QUESTION GIVEN IN THE LESSON(1 MARK)
  1. What happens when a coil is continuously rotated in a uniform magnetic...

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  2. How is current produced?

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  3. Why is there a difference in behaviour in these two cases?

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  4. What force supports the ring against gravity when it is being levitate...

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  5. Could the ring be levitated if DC is used?

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  6. What is this unknown force acting on the metal ring?

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  7. What is responsible for the current in the metal ring?

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  8. What could you conclude from the above analysis (metal ring lifts up a...

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  9. Which law explained the direction of induced current in a coil?

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  10. Can you apply conservation of energy for electromagnetic induction?

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  11. Can you guess what could be the direction of induced current in the co...

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  12. Could we get Farday's law of induction from conservation of energy ?

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  13. Can you derive an expression for the force applied on crosswire by the...

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  14. What happens when a coil is continuously rotated in a uniform magnetic...

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  15. Can you guess the reason for variation of current from zero to maximum...

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  16. Is the direction of current induced in the coil constant? Does it chan...

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  17. Can you guess the reason for variation of current from zero to maximum...

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  18. Can we make use of this current? IF so, how?

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  19. How can we get DC current using a generator?

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  20. What changes do we need to make in an AC generator to be converted int...

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