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Name the semiconductor device that can b...

Name the semiconductor device that can be used to regulate an irregulation dc power supply. With the help of I-V characteristics of this device, explain its working.

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Zener diode is used to regulate an unregulated DC power supply.
Zener diode is a p-n-junction diode specially designed to work only in the reverse breakdown region. It is made from highly doped p and n type semiconductors. It's power rating is kept high so that it is not damaged by the large reverse current. The voltage across such a diople remains constant.
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XII BOARDS PREVIOUS YEAR-XII BOARDS-PHYSICS (Theory) [SET -I]
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  3. Name the semiconductor device that can be used to regulate an irregula...

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  4. How are infrared waves produced? Why are these referred to as 'heat wa...

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  6. Define modulation index. Why is it generally kept less than one ?

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  8. A conductor of length L is connected to a dc source of emf epsilon. If...

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  9. Using Gauss's law obtain the expression for the electric field due to ...

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  10. An electron and a photon each have a wavelength 1.00 nm. Find (i) ...

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  15. State the law of radioactive decay. Plot a graph showing the number (N...

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  19. (a) Draw a ray diagram to show regraction of a ray of monochromatic l...

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