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Question
Explain, with the help of a circuit diagram, the working of n-p-n transistor as a common emitter amplifier.
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RELATED QUESTIONS
A student wants to use two p-n junction diodes to convert alternating current into direct current. Draw the labelled circuit diagram she would use and explain how it works.
A hole diffuses from the p-side to the n-side in a p-n junction. This means that
The potential barrier existing across an unbiased p-n junction is 0.2 volt. What minimum kinetic energy a hole should have to diffuse from the p-side to the n-side if (a) the junction is unbiased, (b) the junction is forward-biased at 0.1 volt and (c) the junction is reverse-biased at 0.1 volt?
The drift current in a p-n junction is 20.0 µA. Estimate the number of electrons crossing a cross section per second in the depletion region.
The current−voltage characteristic of an ideal p-n junction diode is given by \[i = i_0 ( e^{eV/KT} - 1)\] where, the drift current i0 equals 10 µA. Take the temperature T to be 300 K. (a) Find the voltage V0 for which \[e^{eV/kT} = 100 .\]One can neglect the term 1 for voltages greater than this value. (b) Find an expression for the dynamic resistance of the diode as a function of V for V > V0. (c) Find the voltage for which the dynamic resistance is 0.2 Ω.
(Use Planck constant h = 4.14 × 10-15 eV-s, Boltzmann constant k = 8·62 × 10-5 eV/K.)
Answer in detail.
Discuss the effect of external voltage on the width of depletion region of a p-n junction.
The depletion layer in the p-n junction diode is caused by ______.
The formation of the depletion region in a p-n junction diode is due to ______.
Diode and resistance are connected as shown in figure. Out of the following statements which one is TRUE?
In p-n junction diode ______.
