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Electronics Communications Interview Questions
Questions Answers Views Company eMail

Explain the operation of 3φ bridge inverter for 1200 degree mode of operation with aid of relevant phase and line voltage waveforms?

1089

Explain the operation of sequence control of ac voltage controller?

1118

Why opamp called operational amplifier?

1154

Explain the working of voltage commutated chopper with aid of circuit diagram and necessary waveforms. Derive an expression for its output voltage?

1148

Explain what is an excitation table?

1198

What are the types of commutation? (Or) turn off methods?

1075

What is characteristic of ideal opamp?

1062

What are the advantages of free wheeling diodes in a controlled in a controlled rectifier?

1099

What is meant by duty-cycle?

1158

What is commutation angle or overlap angle?

1482

Explain what are the basic logic elements?

1334

What is 555 timer?

1118

What are the disadvantages of the harmonics present in the inverter system?

1326

Why do ics need small power for their operation?

1119

Name the cmos version of the 555 timer.

1106


Post New Electronics Communications Questions

Un-Answered Questions { Electronics Communications }

hi i am electronics & telecomm engg & appling 4 the AAI jr executive (electronics/ATC) written test. pls forward me the syllabus & old question papers.I will be very much thankful to you. das.nilanjana2000@gmail.com

1938


WHAT IS DIFFERENCE BETWEEN. WRITE: a+m(2). m = m + 1. + OF THESE TWO IN SAP ABAP

2247


In C language the condition(4%2==0) and in scanf statement the declaration as %d for integer.Now in the first condition it performs the modulo operator but why it is not so in scanf statement?

2188


Describe the purpose of knee point voltage for differential protection.

1197


Interview questions for ITC Ltd for ECE stream

1908


What is the simplest way to maintain the "power factor" of any system? if you have many methods specify all!

1909


Why gold is added to the p-n junction?

1109


Explain what is angle and amplitude modulation? What is noise in modulation?

1073


what current is transistor biased?

1055


i having three wire RTD but i want analog input signal 4 to 20ma to Allen Bradly plc.so how to connect this one.pls clarifie me.

1946


why can't we share the charging of one phone to another phone? it would be useful during emergency times!! And the mode of sharing should be wireless...

1793


How video signals are produced?

1960


Are you familiar in Basic console / mixer programming of DBX system

2109


behaviour of capacitor & inductor in ac circuits at t=0 & t=infinity.

2147


Define what is the significance of the arrow-head in the transistor symbol?

1506