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What are sky waves ?...

What are sky waves ?

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OSWAAL PUBLICATION-Sample Paper 5-Exercise
  1. a resistor is marked with colours red , red, orange and gold . Write t...

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  2. How does the mutual inductance of a pair of coils change when: Number ...

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  3. What are sky waves ?

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  4. What is the least quantity of the magnitude of the charge that can be ...

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  5. Who proposed quantum theory of light?

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  6. What is a space wave ?

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  7. What is the outcome of Davission Germer Experiment?

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  8. What is the principle behind the working of a transformer ? Mention an...

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  9. Name the physical quantity which remains same for microwaves of wavele...

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  10. Define critical angle for a pair of media.

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  11. Write Coulomb's law in vector form and explain the terms.

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  12. Define: (a) Magnetic declination (b)Magnetic dip. Mention the S.I. u...

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  13. Write the expression for the force between two parallel current carryi...

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  14. Give the logic symbol, Boolean expression and truth table of an AND ga...

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  15. Mention any two importance of speed of light.

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  16. State Faraday's law of electromagnetic induction.

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  17. Write the functions of the following in communication systems: (i) ...

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  18. Write the functions of the following in communication systems: (i) ...

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  19. Define farad. Give the expression for energy stored in a capacitor of ...

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  20. Write the expression for electric potential at a contrasting feature o...

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