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Bipolar Junction Transistors (BJT)

Q1:

Voltage-divider bias provides:

A an unstable Q point

B a stable Q point

C a Q point that easily varies with changes in the transistor's current gain

D a Q point that is stable and easily varies with changes in the transistor’s current gain

ANS:B - a stable Q point

Q point depends on collect-emitter voltage(x axis) and collector current (y axis)--as the fixed biased base is a part of voltage divider the base current remain constant due to which In and vbe remain constant.



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