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Explain the construction of transformer....

Explain the construction of transformer. Mention its principle.

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OSWAAL PUBLICATION-Sample Paper 6-Exercise
  1. Draw Wheatstone bridge and write the condition for balance.

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  2. Derive the expression for the energy stored in a parallel plate capaci...

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  3. Explain the construction of transformer. Mention its principle.

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  4. Define .dielectric constant. of a medium. Briefly explain why the capa...

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  5. Write any four characteristics of electromagnectic waves. Give two use...

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  6. Write any four characteristics of electromagnectic waves. Give two use...

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  7. Name the phenomenon in which an emf is induced in a coil due to the ch...

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  8. Explain the use Zener diode as a voltage regulator.

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  9. Write Einsten.s photoelectric equation and point out any two character...

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  10. State radioactive decay law. Derive N=N0e^(-lambdat) for a radioactiv...

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  11. Derive the expression for lateral shift produced when a ray of light p...

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  12. What is amplification? With a circuit diagram, explain the working of ...

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  13. Explain the experiment to determine the resistivity of the material of...

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  14. A small compass needle of magnetic moment .m. is free to turn about an...

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  15. A compass needle, free to turn in a vertical plane orients itself wit...

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  16. A compass needle, free to turn in a vertical plane orients itself wit...

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  17. Using Bohr.s postulates, derive the expression for the frequency of ra...

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  18. An a.c. source of 220 V, 50 Hz is connected to a series combination of...

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  19. Point charges of 10nC,20nCand10nC are kept at the corners A,B C of a ...

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  20. A battery of internal resistance 3Omega is connected to 20Omega resist...

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