The tail current of a differential amplifier is_______________?
Correct answer: C. two times either collector current
- A. half of either collector current
- B. equal to either collector current
- C. two times either collector current
- D. equal to the difference in base currents
Explanation
The tail current is the sum of the two transistor collector currents. With balanced inputs, each collector carries half the tail current, so the tail current is twice either collector current.
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