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A circular copper ring of raidus r trans...

A circular copper ring of raidus r translates in its plane with a constant velocity v. A uniform magnetic field b exists in the speace in a direction perpendicular ot the plane o fhte ring. Consider different pairs of diametrically opposite points on the ring. (a) Between which pair of points is the emf? (b) Between which pair of points is the emf minimum? What is the value of this minimum emf?

Text Solution

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`V_(A)-V_(B)=2Bvr`
`e_(max)=2Bvr`
`V_(C)-V_(D)=0`
`e_(min)=0`
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CP SINGH-ELECTROMAGNETIC INDUCTION-EXERCISES
  1. A circular copper ring of raidus r translates in its plane with a cons...

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  2. The direction of induced current in the loop

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  3. A current-carrying wire is placed, below a coil in its plane, with cur...

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  4. A wire is bent to form the double loop shown in figure. There is a uni...

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  5. Two different wire loops are concentric and lie in the same plane. The...

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  6. A bar magnet is moved along the axis of a copper ring placed far away ...

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  7. Consider the situation shown in . if the switch is closed and after so...

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  8. Solve the previous question if the closed loop is completely enclosed ...

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  9. As shown in the figure, P and Q are two coaxial conducting loops separ...

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  10. shows a horizontal solenoid connected to a battery and a switch. A cop...

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  11. An aluminium ring B faces an electromagnet A. The current I through A ...

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  12. A conduting ring R is placed on the axis of a bar magnet M . The plane...

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  13. Two circular loops of equal radii are placed coaxially at some separat...

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  14. Two identical coaxial circular loops carry a current i each circulatin...

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  15. Two circular coil P and Q are arranged coaxially as shown. The sign co...

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  16. Two circular loops P and Q are placed with their planes paraller to ea...

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  17. A small, conducting circular loop is placed inside a long solenoid car...

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  18. A small magnet M is allowed to fall through a fixed horizontal conduct...

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  19. In the previous question, the directions of the current flowing in the...

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  20. A copper ring having a cut such as not to from a complete loop is held...

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  21. Lenz's law is consequence of the law of conservation of

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