The tail current in a differential amplifier equals .
A. difference between two emitter currents
B. sum of two emitter currents
C. collector current divided by current gain
D. collector voltage divided by collector resistance
Answer: Option B
Related Questions on OP amp
Current cannot flow to ground through .
A. a mechanical ground
B. an a.c. ground
C. a virtual ground
D. an ordinary ground
When a step-input is given to an OP-amp integrator, the output will be
A. A ramp
B. A sinusoidal wave
C. A rectangular wave
D. A triangular wave with dc bias
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