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Explain briefly, with the help of circuit diagram, how V - I characteristics of a p-n junction diode are obtained ii
(i) forward bias, and
(ii) reverse bias.
Illustrate the shape of the curves obtained.
(b) A semiconductor has equal electron and hole concentration of 6 x 108 /m3. On doping with certain impurity, electron concentration increases to 9 X1012 /m3.
(i) Recognize the new semiconductor obtained after doping.
(ii) Calculate the new hole concentration
Two wires on a piano are the same length and are pulled by the same tension. wire 1 vibrates at a frequency 1.5 times the frequency of wire 2. Calculate the ratio of their masses (
UNIVERSE
An electric bulb is rated 220 V and 100 W.When it is operated on 110 V, the power consumed will be. Ans) P=V*I I will be same in both cases so P1=V1*I P2=V2*I Dividing both equati
the equivalent capacitors of two capacitors 1.87microfarad when connected in series 8mf when connected in parrallel. find the individual capacitances
The fabrication of discrete and integrated circuit solid state devices requires semiconductor crystals with impurity concentrations as low as possible and crystals that contain ver
Q. Can you define Solar Constant? The luminosity of the Sun L is 3.827×10 26 Watts. When the Sun is straight overhead on a clear day how many watts would we expect to illumina
Q Define: specific rotation? Precise rotation for a given wavelength of light at a given temperature is defined as the rotation produced by one-decimetre length of the liquid c
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The Sodium chloride structure NaCl is an ionic crystal and in this crystal the sodium and chlorine ions are located side-by side in the FCC lattice. Like diamond it is also a
Q. What is direction of the current? The path of the magnetic field at the centre of a horizontal current-carrying loop of wire is straight downward. The magnetic field is affe
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