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What is energy band gap of a semiconduct...

What is energy band gap of a semiconductor? What range of energy band gap of semiconductors is suitable for using in solar cells.

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BINA LIBRARY-QUESTION PAPER 2013-EXERCISE
  1. A coil of self inductance 20mH is connected to an a.c source of 220v a...

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  2. State the basic processes involved in the generation of e.m.f. in a so...

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  3. What is energy band gap of a semiconductor? What range of energy band ...

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  4. How do you define mobility of a charge carrier in a conductor? Establi...

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  5. Show that the angular frequency of a charged particle moving in a circ...

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  6. Find the following expression for the magnetic moment of an electron m...

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  7. Write down the four Maxwell's equations.

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  8. The electric field of an e.m. wave is given by Ey= 40sin((2pi)/2x-2p...

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  9. How is a wavefront defined? State Huygen's principle of propagation of...

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  10. Establish the following relation for total deviation delta of a ray li...

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  11. In a young's double slit experiment two slits are made one millimeter ...

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  12. In a young's double slit experiment two slits are made one millimeter ...

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  13. In a series LCR circuit in which R= 3Omega, L=25mH and C=800muF a sinu...

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  14. In a series LCR circuit in which R= 3Omega, L=25mH and C=800muF a sinu...

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  15. A rectangular coil of turns n and area A isrotating withangular veloci...

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  16. What is step up and step down transformer? To transfer electric energy...

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  17. What is photoelectric effect? Why is photo electric current proportion...

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  18. Why is modulation necessary?

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  19. A message signal of frequency 10KHz and peak voltage 10 volts is used ...

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  20. Establish the lens maker's formula for a biconvex lens.

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