ELECTRONIC PRACTICE - Practice Mode

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

Detector Amplifier Oscillator Modulator

Correct Answer: Oscillator

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

Rectifier with filter Voltage multiplier Negative feed back Positive feed back

Correct Answer: Positive feed back

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

Rectification Amplification Regulator circuits Triggering circuits

Correct Answer: Triggering circuits

4) Which device has very high input impedance, low noise output, good linearity and low inter electrode capacity?

NPN transistor PNP transistor Field effect transistor Uni junction transistor

Correct Answer: Field effect transistor

5) What is the difference in current control of MOSFET compared to JFETs?

Insulating layer instead of junction Using N material instead of P material Using P material instead of N material Using N material gate instead of P material

Correct Answer: Insulating layer instead of junction

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