GATE ECE 1999 | GATE ECE Year Wise Previous Years Questions

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GATE ECE 1999

MCQ (Single Correct Answer)

-0.3

The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at

5 Hz

10 KHz

1 MHz

100 MHz

GATE ECE 1999

MCQ (Single Correct Answer)

-0.6

An amplifier has an open loop gain of 100, an input impedance of 1 k$$_\Omega $$, and an output impedance of 100 $$_\Omega $$ . A feedback network with a feedback factor of 0.99 is connected to the amplifier an a voltage series feedback mode. The new input and output impedance respectively are

$$10\,\Omega \,and\,1\,\Omega $$

$$10\,\Omega \,and\,10\,\Omega $$

$$100 k\,\Omega \,and\,1\,\Omega $$

$$100 k\,\Omega \,and\,1 \,\Omega $$

GATE ECE 1999

MCQ (Single Correct Answer)

-0.6

Negative feedback in an amplifier

Reduces gain

Increase frequency and phase distortions

Reduces bandth

Increase Noise

GATE ECE 1999

MCQ (Single Correct Answer)

-0.3

Crossover distortion behavior is characteristic of

class A output stage

class B output stage

class AB output stage

common- base output stage

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