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Predict the direction of induced current...

Predict the direction of induced current in metal rings 1 and 2 when current I in the wire is steadily decreasing .

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MODERN PUBLICATION-ELECTROMAGNETIC INDUCTION-REVISION EXERCISE (Very Short Answer Questions Carrying I mark)
  1. A long straight current carrying wire passes normally through the c...

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  2. What is the relation between weber and Maxwell ?

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  3. Predict the direction of induced current in metal rings 1 and 2 when c...

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  4. Volt-sec is the unit of which physical quantity?

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  5. State Lenz's law of electromagnetic induction. The magnetic threading ...

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  6. When the north pole of a magnet is moved away from a coil, what is the...

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  7. Why a spark is produced in a switch sometimes when it is switched off?

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  8. Derive the expression for motional emf induced in a conductor moving i...

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  9. Define self-inductance of a coil. Obtain the expression for the energy...

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  10. What is the power required to move a conductor of length l having resi...

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  11. Can a moving bar magnet exert a force on a stationary charge? Explain.

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  12. Why eddy currents are named as eddy currents or focault currents?

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  13. What is meant by magnetic flux? A wire cuts across a flux of 0.2 xx 10...

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  14. A metallic plate is made to oscillate in the magnetic field. What will...

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  15. Why eddy currents are undesirable in the core of transformers?

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  16. Give one example of use of eddy currents.

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  17. The motion of copper plate is damped when it is allowed to oscillate b...

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  18. Why is the core of a transformer laminated?

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  19. How magnetic flux generated in a coil depends on the current flowing t...

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  20. What is the significance of Lenz's law?

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