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Q. Consider the MOSFET circuit with variable voltage, with RD = 2k and VDD = 12 V. The static characteristics ofthe n-channel enhancement MOSFET are given in Figure.
(a) Drawthe load line and find the operating point if vGS = 4V.
(b) Sketch the resulting transfer curves (i.e., iD and vDS as a function of vGS) showing cutoff, active, and saturation regions.
(c) For relatively undistorted amplification, the MOSFET circuit must be restricted to signal variations within the active region. Let vGS (t) = 4 + 0.2 sin ωt V. Sketch iD(t) and vDS(t), and estimate the resulting voltage amplification Av.
(d) Let vGS (t) = 6 sin ωt , where ω is slow enough to satisfy the static condition. Sketch iD(t) and vDS(t) obtained from the transfer curves. Comment on the action of the MOSFET in the switching circuit.
Q. The circuit shown in Figure is the equivalent circuit of a field-effect transistor (FET) amplifier stage. (a) Determine the y-parameters. (b) For values of µ = g m /g d >
#question. passive probe .
Q. In the magnetic circuit shown in Figure the center leg has the same cross-sectional area as each of the outer legs. The coil has 400 turns. The permeability of iron may
Q. Find the currents I x using current division and equivalent resistor reductions for the networks given in Figure.
A signal stands for 0110 with positive logic in which low stands for 0 and high stands for 1. If negative logic (in which low stands for 1 and high stands for 0) is used, what digi
A 440v 4-pole dc generator takes an armature current of 50A when rotating at 626 rpm. the armature circuit resistance is 0.25 ohms. determine the generated emf?
An intrinsic semiconductor at room temperature has free electrons
Zero-Bias Equilibrium In a p-n junction, with no an external applied voltage, an equilibrium condition is arrived at in which a potential variation is formed across the juncti
defination and working ?
how is it possible to operate Q3 with no dc drain? where is the dc operating point?
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