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(a) A closed loop is held stationary in ...

(a) A closed loop is held stationary in the magnetic field between the north and south poles of two permanent magnets held fixed. Can we hope to generate current in the loop by using very strong magnets?
(b) A closed loop moves normal to the constant electric field between the plates of a large capacitor. Is a current induced in the loop (i) when it is wholly inside the region between the capacitor plates (ii) when it is partially outside the plates of the capacitor? The electric field is normal to the plane of the loop.
(c) A rectangular loop and a circular loop are moving out of a uniform magnetic field region (Fig. 6.8) to a field-free region with a constant velocity v. In which loop do you expect the induced emf to be constant during the passage out of the field region? The field is normal to the loops.

(d) Predict the polarity of the capacitor in the situation described by Fig. 6.9.

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AAKASH SERIES-ELECTROMAGNETIC INDUCTION-Exercise (Short Answer Questions)
  1. A circular loop of wire is carring a current i (as shown in the figure...

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  2. Figures 1 and 2 show planar loops of different shapes moving out or in...

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  3. Use Lenz's law to determine the direction of induced current in the si...

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  4. A conducting loop is held stationary normal to the field between the N...

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  5. (a) A closed loop is held stationary in the magnetic field between the...

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  6. (a) A closed loop is held stationary in the magnetic field between the...

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  7. (A): An induced current develop in a conductor moved in a direction pa...

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  8. An iron bar falling vertically through the hollow region of a thick cy...

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  9. A small resistor (say, a lamp) is usually put in parallel to be curren...

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  10. The figure shows a circuit. When the circuit is switched on, the amm...

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  11. As soon as current is switched on in a high-voltage wire, the bird sit...

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  12. A wire of fixed length is wound on a solenoid of length 'l' and radius...

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  13. (A) : A spark occur between the poles of a switch when the switch is o...

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  14. The figure shows the magnetic field of a current carrying coil and a r...

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  15. A copper ring is suspended by a thread. One end of a magnet is brought...

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  16. A: When a bar magnet is dropped into a vertical long hollow metallic t...

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  17. In the above problem if block is released from there, what would be ma...

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  18. A lamp in a circuit consissing of a coil of large number of turns and ...

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  19. The magnitude of electric current is increasing in a wire at a constan...

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  20. Assertion:- A piece of copper and a similar piece of stone are dropped...

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