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The magnetic flux threading a coil chang...

The magnetic flux threading a coil changes from to `12x10(-3)` Wb to `6x10(-3)` Wb in `0.015`.Calculate the induced e.m.f.

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A rectangular coil having 200 turns and size 0.30 xx 0.05 m^2 is placed perpendicular to a magnetic field. The field changes from 5x10^(-3) Wbm^(-2) to 2x10(-3) Wbm(-2) in the time interval of 3 millisecond. Calculate the e.m.f. induced in the coil. If the resistance of the coil is 15Omega , find the value of current flowing through it.

PUNJAB BOARD PREVIOUS YEAR PAPERS-ELECTROMAGNETIC INDUCTION-EXERSICE
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  2. A magnetic flux of 5 microweber is linked with a coil when a current o...

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  3. The magnetic flux threading a coil changes from to 12x10(-3) Wb to 6x1...

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  4. What will be the coefficient of mutual inductance of a pair of coil if...

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  5. A wire is cut across a flux of 0.2x10(-2) weber in 0.12 seconds. What ...

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  8. The magnetic flux through a coil perpendicular to its plane and direct...

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  9. The magnetic flux through a coil perpendicular to its plane and direct...

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  10. A wire 88cm long bent into a circular loop is placed perpendicular to ...

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  11. A rectangular coil having 200 turns and size 0.30 xx 0.05 m^2 is place...

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  12. Find the e.m.f. induced in a coil of 100 turns and crosssectional area...

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  13. Current changes from 10A to 0A in 2 seconds in a coil of self inductan...

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  14. Current changes from 12A to 7A in 2 seconds in a coil of self inductan...

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  15. Current changes from 5A to OA in 1 second in a coil of self inductance...

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  16. Name the physical quantity which is measured in weber ampere^(-1).

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  17. What is the basic cause of induced e.m.f.?

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  18. What factors govern the direction of e.m.f. ?

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  19. Define Weber unit of Magnetic flux.

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  20. What is meant by magnetic flux? State its S.I. unit.

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