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Q. What Are the Differences Between Enhancement And Depletion Mosfet?
Depletion MOSFET:Here a slab of p_type material is formed from a silicon base and referred to as substrate. It is the foundation upon which the device will be constructed. In some cases the substrate is internally connected to a source terminal. Many discrete devices provide an additional terminal labelles SS resulting in a four terminal device. The source and drain terminals are connected through metallic contacts to n doped regions linked by an n channel. The gate is also connected to metallic contact surface but remains insulated from the n channel by a very thin silicon dioxide layer.SiO2 is particular type of insulator referred to as dielectric that sets up opposing electric fields within the dielectric when exposed to an externally applied field.
· When gate to source voltage is set to 0,by direct connection from one terminal to another a current is established through the channel.
· When VGS has been set at negative voltage, it will tend to pressure the electrons towards the p type substrate, the drain current is reduced .
· When VGS has been set at positive voltage the positive gate will draw additional electrons from the p type substrate and hence resulting in increase in current.
Q. Define Power-Supply Rejection Ratio? An op amp's ability to disregard changes in power-supply voltage is measured by the power- supply rejection ratio (PSRR), which is speci
1) Assume that we are given the continuous-time signal xa (t) = xa1 (t) + xa2 (t) + xa3 (t), where, xa1 (t) = 2 + cos3 (2pf1 t + p 3 ) + 2 cos(2pf2 t), xa2 (t) = 2 cos(2pf3 t)
Q. what is frequency synthesized signal generator? Describe its circuit in detail. OR Give the circuit details of frequency synthesizer also explain its working. OR
Consider the RL circuit of Figure with R = 2, L = 5H, and v(t) = V = 20 V (a dc voltage source). Find the expressions for the inductor current i L (t) and the inductor voltage v L
Metering Standards Relevant standards on metering are given in Table. Table: Relevant Metering Standards Standards Description
a) Diagram FMS layout configurations with labeling. b) what are the basic components of FMS?Discuss in briefly. c) Describe the function of material handling system.
Q. In a differentiating circuit, R=10 kW,and C=2.2μF.If the input voltage goes from 0V to 10 V at a constant rate in 0.4s, determine the output voltage. Solution: e 0 =
Q. Sketch the asymptotic Bode diagrams for the following functions:
(a) How transistor will be used as an amplifier? (b) Give relation between α and β? (c) Show the biasing arrangement for the PNP transistor in common base configuration, so t
NAND Gate NAND means NOT AND it complements the output of an AND gate. The symbol of NAND by a NOT gate. Generally Not operation is represented by a bubble as shown
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