Physics Questions And Answers :: Oscillators: part1



Basic Science : Oscillators QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :

6.The frequency of a transistor Hartley oscillator with L1 = 100 µH; L2 = 1 mH and C= 20 pF is

1000 Hz
1050 Hz
1000 kHz
500 kHz

7.Which of the following produces square waveform

multi vibrator
Hartley oscillator
turned base oscillator
turned collector oscillator

8.The expression for frequency of Hartley oscillator is

9.Positive feedback is used in oscillators because it

increases selectivity
reduces distortion
increases stability
increases gain

10.If an oscillator circuit consists of an inductance of (1/4π2) Hendry and a capacitance of 1 picofarad connected in parallel, then the resonant frequency of the oscillator is

10 mega hertz
1 mega hertz
20 mega hertz
100 mega hertz

More Oscillators QUESTIONS AND ANSWERS available in next pages

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