Electronic Instruments (Analog as well as Digital) Interview Questions and Answers: 1. Why ordinary voltmeter cannot be used in electronic circuits? Ans. A moving coil voltmeter draws a large current, hence…
Cathode Ray Oscilloscope Interview Questions and Answers: 1. What is cathode ray oscilloscope (CRO)? Ans. A CRO is an electronic device with a CRT as its main component and other associated…
Transducers Interview Questions and Answers: 1. Explain in brief the term transducer. Ans. Basically transducer is defined as a device which converts energy or information from one form to another. These…
Advantages of Negative Feedback Amplifier: There are numerous advantages of negative feedback amplifier which outweigh its only drawback of reduction in gain. Among the advantages are : 1. Gain Stability:Â …
Harmonic Distortion in Power Amplifier - Waveform and Derivation: Harmonic Distortion in Power Amplifier - Output signal variations of less than 360° of the signal cycle are considered to have…
Direct Coupled Transistor Amplifier - Operations and Equivalent Circuit: Direct coupling is essential for very low frequency (below 10 Hz) applications such as photoelectric current, thermocouple current etc. Thermocouples are…
What is Oscillator? - Types of Oscillators: An oscillator is the basic element of all ac signal sources and generates sinusoidal signals of known frequency and amplitude. It is one…
Photoemissive cells or Tubes - Working Principle and Types: These Photoemissive cells or Tubes devices are basically of two types namely vacuum type and gas filled type. 1. Vacuum Type…