Analog Electronics - Part 1 Online Exam Quiz
Analog Electronics - Part 1 GK Quiz. Question and Answers related to Analog Electronics - Part 1. MCQ (Multiple Choice Questions with answers about Analog Electronics - Part 1
To prevent a DC return between source and load, it is necessary to use
Options
A : resistor between source and load
B : inductor between source and load
C : capacitor between source and load
D : either (a) or (b)
For a base current of 10 ?A, what is the value of collector current in common emitter if ? dc = 100
Options
A : 10 ?A
B : 100 ?A
C : 1 mA
D : 10 mA
Which of the following oscillators is suitable for frequencies in the range of mega hertz?
Options
A : RC phase shift
B : Wien bridge
C : Hartley
D : Both (a) and (c)
If the input to the ideal comparator shown in the figure is a sinusoidal signal of 8 V (peak to peak) without any DC component, then the output of the comparator has a duty cycle of
Options
A : 1/2
B : 1/3
C : 1/6
D : 1/12
A half wave diode circuit using ideal diode has an input voltage 20 sin ? t volts. Then average and rms values of output voltage are
Options
A : and 10 V
B : and 10 V
C : and 5 V
D : and 5 V
An RC coupled amplifier has an open loop gain of 200 and a lower cutoff frequency of 50 Hz. If negative feedback with ? = 0.1 is used, the lower cut off frequency will be
Options
A : about 50 Hz
B : about 5 Hz
C : about 2.38 Hz
D : about 70.5 Hz
In figure v 1 = 8 V and v 2 = 4 V. Which diode will conduct?
Options
A : D 2 only
B : D 1 only
C : Both D 1 and D 2
D : Neither D 1 nor D 2
The load impedance Z L of a CE amplifier has R and L in series. The phase difference between output and input will be
Options
A : 180°
B : 0
C : more than 90° but less than 180°
D : more than 180° but less than 270°
If an amplifier with gain of - 1000 and feedback factor ? = - 0.1 had a gain change of 20% due to temperature, the change in gain of the feedback amplifier would be
Options
A : 10%
B : 5%
C : 0.2%
D : 0.01%
In figure The minimum and maximum load currents are
Options
A : 0 and 60 mA
B : 0 and 120 mA
C : 10 mA and 60 mA
D : 10 mA and 120 mA
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