29) Why most of semi conductor devices are made by silicon compared to germanium?

High barrier voltage

High resistance range

High thermal conductivity

High current carrying capacity

Answer is:

High barrier voltage

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30) What is the output voltage if the centre tap of transformer is open circuited in a full wave rectifier circuit?

Zero voltage

Full rated output

Half of the rated output

One fourth of rated output

Answer is:

Zero voltage

31) Which oscillator provides high accurate stable frequency?

Hartley oscillator

Colpitts oscillator

Quartz crystal oscillator

R.C phase shift oscillator

Answer is:

Hartley oscillator

32) What is the characteristic property of base material in a transistor?

Lightly doped and very thin

Heavily doped and very thin

Lightly doped and very larger

Heavily doped and very larger

Answer is:

Lightly doped and very thin

33) Which multi vibrator produces a repetitive pulse wave form output?

Astable multi vibrator

Bistable multi vibrator

One shot multi vibrator

Monostable multi vibrator

Answer is:

Astable multi vibrator

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29) Why most of semi conductor devices are made by silicon compared to germanium?

High barrier voltage

Electronic Practice MCQ with Answers

Related Electronic Practice MCQ with Answers

30) What is the output voltage if the centre tap of transformer is open circuited in a full wave rectifier circuit?

Zero voltage

31) Which oscillator provides high accurate stable frequency?

Hartley oscillator

32) What is the characteristic property of base material in a transistor?

Lightly doped and very thin

33) Which multi vibrator produces a repetitive pulse wave form output?

Astable multi vibrator

Electronic Practice MCQ with Answers