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A conducting rod of 1 m length is rotate...

A conducting rod of 1 m length is rotated with a frequency of 50 rev/s, with one end hinged at the centre and the other end at the circumference of a circular metallic ring of radius 1 m, about an axis passing through the centre and perpendicular to the plane of the ring. A constant and uniform magnetic field of 1 T parallel to the axis is present everywhere. What is the emf between the centre and the metallic ring?

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MODERN PUBLICATION-ELECTROMAGNETIC INDUCTION-EXERCISE
  1. Draw a labelled diagram of a.c.generator.

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  2. State the factors on which induced e.m.f. in a coil rotating in a unif...

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  3. A conducting rod of 1 m length is rotated with a frequency of 50 rev/s...

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  4. A rectangular coil of n turns and area A is held in a uniform magnetic...

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  5. Draw a labelled diagram of a.c.generator.

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  6. What is electromagnetic induction ? State its laws.

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  7. Name the methods of producing induced emf.

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  8. State and explain Faraday’s law of electromagnetic induction.

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  9. Explain Faraday's and lenz's law of electromagnetic induction by descr...

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  10. What is Lenz's law? prove that Lenz's law is in accordance with the co...

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  11. Figure shows a rectangular conductor PQRS in which the conductor PQ is...

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  12. What are eddy currents ?

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  13. What is self Inductance of a coil ? Define coefficient of self Inducti...

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  14. Define self-inductance of a coil. Show that magnetic energy required t...

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  15. Using Ampere's circuital law, obtain an expression for the magnetic fi...

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  16. Derive expression for the coefficient of mutual inductance between two...

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  17. Derive expression for the coefficient of mutual inductance between two...

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  18. Derive expression for the coefficient of mutual inductance between two...

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  19. What is meant by mutual induction? Define coefficient of mutual induct...

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  20. Derive expression for the coefficient of mutual inductance between two...

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