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Explain Intrinsic Semiconductor.
Intrinsic Semiconductor: An extremely pure semiconductor is termed as intrinsic semiconductor. But at absolute zero temperature its valence band is totally filled and the conduction band is fully empty. While the temperature is raised several electrons are lifted to conduction band leaving behind holes into valence band. While an electric potential difference is applied across a pure semiconductor remained at room temperature, the current conduction get place by two types of charge carriers, namely holes and electrons. Thus the total current inside the semiconductor is the sum of currents due to free electrons and holes.
Q. The DeMorgan's theorems suggest that the basic logic operations can be realized by use of inverters and NAND gates only. For the circuits shown in Figure, find the truth table,
If a current of 10A flows for four minutes, find the quantity of electricity transferred. Quantity of electricity, Q=It coulombs. I =10A and t = 4 × 60 = 240s. Hence Q =
Q. The unit impulse response h(t) of a linear system is h(t) = 5e -t cos(2t - 30°). Determine H(s).
Maximum power transfer theorem
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highest priority interrupt in 8085 microprocessor
Q. What do you mean by Number Systems? The Digital circuits are inherently binary in nature, but numerous types of representations of numerical data are in use. The represen
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