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Which of the following is incorrect for semiconductors?
(a)Conductivity of semi-conductor increases with rise in temperature
(b)Resistivity of semi-conductor increases with rise in temperature.
(c)Ohm's law is not strictly obeyed by semiconductors
(d)Mobility of holes are less as compared to electrons in semi-conductors.

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Important Questions on Semiconductor Electronics: Materials, Devices and Simple Circuits
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The transistors provide good power amplification when they are used in

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In a semiconductor, the concentration of electrons is per and that of the holes is per . The semiconductor is _____.

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In a junction, the width of depletion layer, is

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Which of the following statements is not true for Zener diode?

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Diffusion current in a p–n junction is greater than the drift current in magnitude

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For the diodes given in figures below, the forward biased diode is

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The circuit diagram shown here corresponds to the logic gate,

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The output of a NOR gate is 1 if _____
