For feedback amplifier with gain $$\frac{{\text{A}}}{{1 - {\text{T}}}}$$ feedback reduces the internally generated noise by a factor
A. T
B. (1 - T)
C. $$\frac{1}{{\text{T}}}$$
D. $$\frac{1}{{1 - {\text{T}}}}$$
Answer: Option B
A. T
B. (1 - T)
C. $$\frac{1}{{\text{T}}}$$
D. $$\frac{1}{{1 - {\text{T}}}}$$
Answer: Option B
The action of JFET in its equivalent circuit can best be represented as a
A. Current controlled Current source
B. Current controlled voltage source
C. Voltage controlled voltage source
D. Voltage controlled current source
In a p+n junction diode under reverse bias, the magnitude of electric field is maximum at
A. The edge of the depletion region on the p-side
B. The edge of the depletion region on the n-side
C. The p+n junction
D. The center of the depletion region on the n-side
To prevent a DC return between source and load, it is necessary to use
A. Resistor between source and load
B. Inductor between source and load
C. Capacitor between source and load
D. Either A or B
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