Analog, Digital Electronics Questions and Answers - 2

Question: 6

In a JFET, at pinch-off voltage applied on the gate

(A) The drain current becomes almost zero

(B) The drain current is almost at saturation value

(C) The drain to source voltage is close to zero volts

(D) The drain current begins to decrease

Question: 7

The main characteristics of a Darlington amplifier are

(A) Low input impedance, low output impedance and high current gain

(B) High input impedance, high output impedance and high current gain

(C) Low input impedance, low output impedance and low current gain

(D) High input impedance, low output impedance and high current gain

Question: 8

Most of linear ICs are based on the two transistor differential amplifier because of its

(A) Input voltage dependent linear transfer characteristic

(B) High input resistance

(C) High voltage gain

(D) High CMMR

Question: 9

Silicon and Germanium are _____ electrons.

(A) Tetravalant

(B) Hexavalant

(C) Pentavalant

(D) Trivalant

Question: 10

A self bias circuit stabilizes the _____ circuit against variations in temperature and process parameters.

(A) Base emitter voltage

(B) Base current

(C) Current gain

(D) Collector current