Diodes Questions & Answers
1. Explain what is a pn junction? The contact surface between the layers of p-type and n-type semiconductor pieces plated together so as to form a p-n junction is called...
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Electronics Questions & Answers
1. What is Electronic? The study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles. 2. What is communication? Communication means...
Operational Amplifiers Questions & Answers
1. Explain what is an operational amplifier? An operational amplifier, abbreviated as op-amp, is basically a multi-stage, very high gain, direct-coupled, negative feedback amplifier that uses voltage shunt feedback to...
Logic Gates Questions and Answers
1. Explain what is a combinational circuit? In a combinational circuit, the output depends upon present input(s) only i.e, not dependant on the previous input(s). The combinational circuit has no...
Electronic Meters Questions & Answers
1. Explain what is the difference between an ammeter and a voltmeter? Ammeter is a low resistance indicating instrument while the voltmeter is a high resistance one. 2. Explain why...
Amplifiers Questions & Answers
What is the effect of negative feedback on voltage gain, BW, Noise, nonlinear distortion, Ri, Ro of a voltage amplifier? The voltage gain, bandwidth, noise, nonlinear distortion, input resistance, output...
Bipolar Junction Transistors Questions & Answers
1. Explain why an ordinary junction transistor is called bipolar? Because the transistor operation is carried out by two types of charge carriers (majority and minority carriers), an ordinary transistor...
Basics of Amplifiers Interview Questions
What is a common Base amplifier? Common base amplifier is on in which the base terminal is common to both input and output circuit. Following are the some of the...
Rectifiers & Filters Interview Questions
1. Explain what is a dc power supply? The part of the equipment that converts ac into dc is called dc power supply. 2. Explain what is a rectifier? A...
BJT Amplifiers Interview Questions & Answers
1. Explain what is an amplifier? The device that amplifies the amplitude of the input signal is called the amplifier. An amplifier may be defined as a device that increases...