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Why is the amplitude of modulating signa...

Why is the amplitude of modulating signal kept less than the amplitude of carrier wave?

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Amplitude modulation has

What is amplitude modulation ?

Define amplitude of a wave

Write an expression for amplitude modulated carrier wave .

How is Amplitude modulation produced ?

The process of changing the amplitude of a carrier wave in accordance with the amplitude of the audio frequency signal (AF) is known as

OSWAAL PUBLICATION-Sample Paper 6-Exercise
  1. Obtain an expression for the capacitance of a spherical conductor.

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  2. (i) Define modulation index. (ii) Why is the amplitude of modulating...

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  3. Why is the amplitude of modulating signal kept less than the amplitude...

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  4. Draw Wheatstone bridge and write the condition for balance.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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