Related Questions

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
In a simple on-off controller with differential gap, the magnitude of differential gap determines
A The level of accuracy
B The life of controller
C Both (a) and (b)
D Neither (a) nor (b)
Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).
A H
B 12.6 H
C 13.6 H
D 14.6 H
The common mode voltage gain of a differential amplifier is equal to RC divided by
A re
B 2re
C $$\frac{{{{\text{r}}_{\text{e}}}}}{2}$$
D 2RE
A change in the value of the emitter resistance Re in a differential amplifier
A Affects the difference mode gain Ad
B Affects the common mode gain Ac
C Affects both Ad and Ac
D Does not effect either Ad and Ac
Most of the linear ICs are based on the two-transistor differential amplifier because of its
A Input voltage dependent linear transfer characteristic
B High voltage gain
C High input resistance
D High CMRR
When either one of the inputs to the differential amplifier is equal to zero then it is said to be operated in
A Single ended mode
B Differential mode
C Non inverting mode
D Inverting mode
When a differential amplifier is operated single-ended, ___________
A the output is grounded
B one input is grounded and signal is applied to the other
C both inputs are connected together
D the output is not inverted
The input impedance of a differential amplifier equals r'e times
A ß
B RE
C RC
D 2ß
A differential amplifier ___________
A is a part of an Op-amp
B has one input and one output
C has two outputs
D A and B both

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