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Electrician
Electrician Set-1
Semi Conductor Devices
10

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

10) The gain (voltage or current) of a CE amplifier is highest at ?

high frequency

low frequency

mid frequency

all frequency

Answer is:

mid frequency

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

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Related Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

11) In a three stage cascade amplifier, if the gain of first stage is 50, of second stage is 10 and of third stage is 5, then what is the overall gain ?

27.689

55.378

65.0

2500

Answer is:

2500

12) Which one of the following points is true in case of direct coupled amplifiers ?

Poor low frequency response

Higher cost

Needs a ripple free power supply

Insensitive to temperature changes

Answer is:

Needs a ripple free power supply

13) In RC coupled amplifier, the reduction in gain at low frequencies is caused due to ?

bias resistors

capacitive reactance

inductive reactance

transistor

Answer is:

capacitive reactance

14) The advantage of impedance coupling (using a choke as collector load) is ?

low d.c. resistance and high impedance

low d.c. resistance and low impedance

high d.c. resistance and high impedance

high d.c. resistance and low impedance

Answer is:

low d.c. resistance and high impedance

Semi Conductor Devices MCQ - Electrician (Set-1) with Answers

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