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What is attenuation in communication sys...

What is attenuation in communication system ?

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OSWAAL PUBLICATION-Sample Paper 7-Exercise
  1. The emf of a cell is always greater than its terminal voltage. Why? Gi...

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  2. What is attenuation in communication system ?

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  3. Define S.I unit of charge .

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  4. Define dispersive power of the material of a prism. How can it be meas...

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  5. Name the scientist who determined the speed of light most accurately.

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  6. Mention one application of Raman effect.

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  7. What are the directions of electric and magnetic field vectors relativ...

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  8. Give one example each of a .system. that uses that Space wave mode of ...

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  9. name the spectral series of hydrogen which lies in the ultraviolet reg...

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  10. Mention any three application of eddy currents.

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  11. What is the effect of the presence of a dielectric medium on Capacitan...

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  12. How does the electrostatic force between two point charges change, whe...

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  13. Distinguish between 'Analog and Digital signals'.

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  14. Draw the ray diagram of image formation in case of compound microscope

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  15. Obtain an expression for the force between two straight parallel condu...

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  16. How are p-type n-type semiconductors formed ?

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  17. What is (a) electric dipole moment , (b) dielectric strength ?

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  18. What is (a) electric dipole moment , (b) dielectric strength ?

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  19. The current in a coil is changing from 10 A and 8 A in 0.01 second. Th...

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  20. Derive the expression for emf induced in a straight conductor moving p...

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