Draw the structure of an n-channel JFET with appropriate voltage bias and explain the process of pinch-off. Explain the various regions on the drain characteristic of this JFET for VDS > 0 and .
An n-channel JFET (Junction Field Effect Transistor) consists of an n-type semiconductor channel with p-type regions on either side forming the gate. The source (S) is connected to one end of the n-channel, the drain (D) to the other, and the gate (G) is reverse-biased with respect to the source. For proper operation, the gate-source voltage ( V_{GS} ) __________ ____ _________ ___ _______ ____ _________.
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You want to amplify a triangular wave signal of amplitude and
frequency. Which characteristic of op-amp will be significant in this case? What is its minimum value?
h-parameters of a single stage CE amplifier are given as and
. Calculate Ai, Av, Zin and Zout with
and
.
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.
Convert 396010 (decimal) into its hexadecimal equivalent and then divide it by hexadecimal number 0816. Express the result in octal equivalent.
Draw the circuit of 2's complement binary adder-subtractor and using it explain the addition of binary equivalent of decimal number 9 and binary equivalent of decimal number 4 .
ट्रांजिस्टर के सार्वत्रिक बायसन में कौन सा प्रतिरोध फिडबैक अवयव का कार्य करता है ? इससे परिपथ को स्थिरता कैसे प्राप्त होती है ?
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
.