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Define temperature coefficient of resist...

Define temperature coefficient of resistivity. State its S.I unit.

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CHETANA PUBLICATION-SEMICONDUCTORS-EXERCISE
  1. At what temperature will the speed of sound in air be 2 times its spee...

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  2. Derive an expression for couple acting on an electric dipole kept in a...

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  3. Define temperature coefficient of resistivity. State its S.I unit.

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  4. Explain term : Convection.

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  5. Two satellites A and B are revolving round a planet. Their periods of ...

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  6. A convex lens held some distance above a 10cm long pencil produces its...

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  7. Explain the N-type semicondutors.

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  8. Obtain an expression for binding energy of a satellite revolving in a ...

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  9. If vec A = 2 hat i + 2 hat j - hat k and vec B = hat i + 4 hat j- 3 ha...

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  10. Explain forward biasing in P-N junction diode with diagram.

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  11. Name three basic units of communication system. Draw the labelled bloc...

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  12. Derive an expression for strain energy of the material of wire.

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  13. A metal sphere cools at the rate of 1.6^@C//min when itstemperature is...

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  14. Explain fundamental forces in nature.

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  15. Derive an expression for refraction at single spherical surface.

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  16. Derive formula for kinetic energy of a body having mass M and velocity...

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  17. Derive expression for Magnetic induction due to a bar Magnet at a poin...

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  18. State any six properties of magnetic lines of force.

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  19. Draw the diagram showing two cells connected in series. State advantag...

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  20. State the expression for apparent frequency when source of sound and l...

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