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Un-Answered Questions { Electronics Communications }

define why diodes are not operated in the breakdown region in rectifiers?

1138


Define what are the main purposes for which a common-collector amplifier may be used?

1130


Which of the transistor currents is always the largest? Which is always the smallest? Which two currents are relatively close in magnitude?

1159


What do you understand by collector reverse saturation? In which configuration does it have a greater value?

1429


What is the conductivity of perfect dielectric?

1224


Define what is meant by phase reversal?

1164


What happens to the conductivity of semiconductor with the rise in temperature? Compare with the conductivity of metals.

990


What is astigmatism control?

1122


What do you mean by operating point?

998


Define what is a p-n junction?

1174


Why is silicon preferred to germanium in the manufacturing of semiconductor devices?

1079


Explain what are the factors which the measurement accuracy of q-meter?

1140


What are the essential components of a crt?

1183


Explain the term doping and its need.

1223


How do the transition region width and contact potential across a p-n junction vary with the applied bias voltage?

1155