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Electrician
Electrician Set-2
Electronic Practice
39

Electronic Practice MCQ with Answers

39) What is the function of a transistor if emitter to base and collector to base are forward biased?

Acts as an amplifier

Acts as an oscillator

Acts as an open circuit

Acts as a closed switch

Answer is:

Acts as a closed switch

Electronic Practice MCQ with Answers

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Related Electronic Practice MCQ with Answers

40) What is the main advantage of a class A amplifier?

Minimum distortion

Maximum current gain

Maximum voltage gain

Minimum signal to noise ratio losses

Answer is:

Minimum distortion

41) Which electronic circuit produces signal waves or pulses without an input?

Detector

Amplifier

Oscillator

Modulator

Answer is:

Oscillator

42) Which circuit is essential to maintain oscillations or waves in an oscillator circuit?

Rectifier with filter

Voltage multiplier

Negative feed back

Positive feed back

Answer is:

Positive feed back

43) What is the main application of uni junction transistor?

Rectification

Amplification

Regulator circuits

Triggering circuits

Answer is:

Triggering circuits

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