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बूलीय नियमों और प्रमेयों का उपयोग करके निम्नलिखित समरूपताओं को सिद्ध करें :
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Obtain the Q- point of a bipolar junction transistor in CE configuration with and
.
Obtain the expression for the output of the following logic circuit. Write its truth table. Which gate is represented by this circuit?
Describe the construction of a photodiode with appropriate diagram. What is the minimum frequency (in Hertz) of the photons detectable by a photodiode made of a semiconductor with 2.5 eV bandgap?
Design and draw shunt voltage regulator using a zener diode to provide output with maximum load current of
. Assume that the input unregulated dc voltage is
and the minimum zener current is
.
एक जेनर डायोड का उपयोग करके 7 V निर्गम वोल्टता आर 50 mA अधिकतम लोड धारा दन वाला शंट वोल्टता नियामक डिज़ाइन करें और इसका परिपथ चित्र खींचें। मान लें कि अनियमित निवेश वोल्टता 10 V तथा जेनर प्रचालन की न्यूनतम धारा 10 mA हैं।
Refer to Fig. 15.4 in your study material showing the geometry of the electron beam deflection in a CRT. In this CRT the length of deflection plates (L) is and the distance between screen and centre of the deflection plates (R) is
. Accelerating voltage applied to the anode is 1200 V and applied deflection voltage is 80 V. If the deflection suffered by the electron beam at the edge of the deflection plate (h) is 1 mm, calculate the plate separation (s). Determine the deflection observed on the CRT screen (y) and calculate the deflection sensitivity.