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Un-Answered Questions { Electronics Communications }

Define dynamic resistance of a p-n junction diode in forward biased condition.

1004


Define what is the effect of removal of bypass capacitor in a ce amplifier circuit?

1085


Define what is the main factor for controlling the thermal generation and recombination?

1247


What are ‘emitter injection efficiently’ and ‘base transport factor’ and how do they influence the transistor operation?

1049


In which bands do the movement of electrons and holes take place?

1217


What is intrinsic semiconductor ?

1030


What is meant by led?

988


Define what is meant by voltage regulation of a dc power supply?

981


Why silicon type transistors are more often used than germanium type?

1196


Why common-collector circuit is known as an emitter follower?

1053


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

1057


Explain what is reverse saturation current?

1101


Why transistor is called current controlled device?

1192


What is the ratio of majority and minority carriers in intrinsic and extrinsic semiconductors?

1112


Define cut-in voltage of a p-n junction diode?

1101