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Champion Test for GATE-19 on Analog Electronics (App update required to attempt this test)

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Question 1

If fixed positive charges are present in the gate oxide of an n-channel enhancement type MOSFET, it will lead to

Question 2

In the circuit shown, the PNP transistor has and Assume that For to be 5 V, the value of is ___________ .

Question 3

For a common-base configuration of a BJT, the reverse voltage ratio is computed as:

Question 4

Find the value of R to design a RC phase shift oscillator to sustain oscillations of and put C= 1nF?

Question 5

Find the capacitor voltage VC at t=1msec if switch is closed as t=0. Assume capacitor initially uncharged and op-amp is not saturated.

Question 6

Given Pmax = 14 mW for each diode, determine the Imax for Vi = 2.7 V. (VD = 0.7 V)

Question 7

In a diode circuit, find the value of VD if voltage across diode is 0.7V at 1 mA dc, where n = 2.

Question 8

A three-phase diode bridge rectifier is feeding a constant DC current of 100 A to a highly inductive load. If three-phase, 415 V, 50 Hz AC source is supplying to this bridge rectifier then the RMS value of the current in each diode, in ampere, is _________.

Question 9

Determine the voltage gain for the given network, if the equivalent model of the transistor is given as: is very large.

Question 10

The two-stage amplifier shown in fig uses transistors Q1 and Q2, both having current gain β of 80 and dynamic emitter resistance, r’e, of 25 Ω each. Find out the overall voltage gain of the amplifier.
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Mar 12ESE & GATE EE