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A coil A of radius R and number of turns...

A coil A of radius R and number of turns n carries a current i and it is placed in a horizontal plane. A small conducting ring P of radius `r (r lt lt R)` is placed at a height `y_(0)` above the centre of the coil A as shown in figure-5.38. Calculate the induced EMF in the ring when the ring in allowed to fall freely. Express the induced EMF as a function of instantaneous speed of the falling ring and its height above the center of the coil A.

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PHYSICS GALAXY - ASHISH ARORA-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT-Advance MCQs
  1. A coil A of radius R and number of turns n carries a current i and it ...

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  2. A loop is kept so that its center lies at the origin of the coordinate...

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  3. For a RLC series circuit , phasors of current i and applied voltage V=...

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  4. Two different coils have self-inductances L(1) = 8 mH and L(2) = 2 mH....

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  5. Mutual inductance of two coils can be increased by

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  6. Which of the following statements is/are correct?

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  7. The loop shown moves with a velocity v in a uniform magnetic field of ...

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  8. In the following electrical network at t lt 0, key is placed on (1) ti...

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  9. An infinitely longg wire is placed near a square loop as shown in figu...

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  10. A circuit is set up by connecting L=100mH, C=5muF and R=100Omega in se...

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  11. Choose the CORRECT statements:

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  12. For an LCR series circuit with an aac source of angular frequency omeg...

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  13. In the circuit shown in figure, circuit is closed at time t=0. At time...

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  14. Choose the CORRECT statement(s) in the following:

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  15. In the circuit shown in figure-5.318, if both the bulbs B(1) and B(2) ...

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  16. Two circular coils are placed adjacent to each other. Their planes are...

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  17. AB and CD are fixed conducting smooth rails placed in a vertical plane...

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  18. A coil of area 2m^2 and resistane 4Omega is placed perpendicular to a ...

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  19. A circuit consisting of a constant EMF E, a self-inductance L and a re...

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  20. In LC oscillations of a capacitor with an initial charge q(0) is conne...

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  21. A solenoid is connedted to a source of constant EMF for a long time. A...

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