Illumination Engineering Interview Questions and Answers: 1. What are the advantages of artificial lighting produced electrically ? Ans. Artificial lighting produced electrically have the advantages of cleanliness, ease of control, reliability, steady output as well…
Summing Amplifier Circuit Diagram: Figure 14.17 shows an Summing Amplifier circuit diagram in inverting configuration with three inputs Va, Vb, Vc. Depending on the relation between Ra, Rb, Rc and RF, the circuit can be used…
Solid State Modulator/Demodulator Circuit: A solid state modulator/demodulator circuit is shown in Fig. 14.41. The transÂformer T is driven by an ac source and couples each secondary connected to the two transistor pairs, Q1 -…
Parallel Adder and Subtractor: Parallel Adder and Subtractor which consists of three categories, namely,  n Bit Parallel Adder,Binary Parallel Adder and n Bit Parallel Subtractor. n Bit Parallel Adder: We have seen, a single…
Digital Frequency Meter: Principle of Operation of Digital Frequency Meter - The signal waveform is converted to trigger pulses and applied continuously to an AND gate, as shown in Fig. 6.4. A pulse of 1…
Feedback Amplifier - Block Diagram, Definition, Operation and Types: Figure 19.7 represents the block diagram of an Feedback Amplifier. The output quantity (either voltage or current) is sampled by means of a suitable sampling network…
8255 Interfacing with 8086: Fig. 14.17 shows the 8255 Interfacing with 8086 Microprocessor and Interfacing 8255 with 8085 Microprocessor in I/O mapped I/O technique. Here RD and WR signals are activated when IO/M signal is…
Speed Torque Characteristics of Series Motor: The field winding is connected in series with the armature (Fig. 1.2(b)). The armature current and field current are the same. The operating Speed Torque Characteristics of Series Motor…
Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 4: 150. In phase modulation, phase deviation is proportional to (a) carrier amplitude. (b) carrier phase. (c) message signal. (d) message signal frequencies. Answer : (c)…
Cogeneration and Energy Conservation Interview Questions and Answers: 1. What do you mean by word 'cogeneration' ? Ans. Cogeneration is sequential of energy contained in fuel into two or more usable forms. In one manifestation…