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Write different method to produce induce...

Write different method to produce induced emf.

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Induced emf can be obtained by changing flux linked with coil.
Flux `[phi=Abcostheta]` can be changed by following method.
(1) By changing magnetic induction `vecB`
(2) By changing area of coil A.
(3) By changing angle `theta` between `vecA` and `vecB`.
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KUMAR PRAKASHAN-ELECTROMAGNETIC INDUCTION-Section D MCQs (MCQs asked in Competitive Exams )
  1. Write different method to produce induced emf.

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  2. Three pure inductance each of 3 H are connected as shown in figure. Th...

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  3. Two coils are placed closed to each other. The mutual inductance of th...

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  4. When electric current in a coil steadily changes from +2 A to -2 A is ...

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  5. A coil having n turns and resistance ROmega is connected with a galva...

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  6. In a uniform magnetic field of induction B a wire in the form of a sem...

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  7. One conducing U tube can be slide inside another as shown in figure, m...

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  8. Which of the following units denotes the dimension M^1 L^2 Q^(-2) ? (w...

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  9. The flux linked with a coil at any instant 't' is given by phi=10t^2-5...

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  10. Two coaxial solenoids are made by winding thin insulated wire over a p...

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  11. In a coil of resistance 100 Omega , a current is induced by changing t...

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  12. A planar loop of wire rotates in a uniform magnetic field. Initially a...

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  13. The given loop is kept in a uniform magnetic field perpendicular to th...

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  14. A conducting square frame of side 'a' and a long straight wire carryin...

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  15. An electron moves on a straight line path XY as shown. The abcd is a c...

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  16. A long solenoid has 1000 turns. When a current of 4 A flows through it...

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  17. A uniform magnetic field is restricted within a region of radius r. Th...

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  18. A circular coil of radius 10 cm, 500 turns and resistance 2Omega is pl...

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  19. A bulb connected in series with an air-cored solenoid is lit by an a.c...

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  20. Inside a parallel plate capacitor the electric field E varies with tim...

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  21. The magnetic potential energy stored in a certain inductor is 25 mJ, w...

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