GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 217 - 221 of 1076

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Question 217

Appeared in Year: 1998

Question

MCQ▾

In a differential amplifier, CMRR can be improved by using an increased.

Choices

Choice (4)Response

a.

Collector resistance

b.

Emitter resistance

c.

Power supply voltages

d.

Source resistance

Question 218

Appeared in Year: 1999

Question

MCQ▾

The first pole encountered in the frequency response of a compensated OP-AMP is approximately at

Choices

Choice (4)Response

a.

b.

c.

d.

Question 219

Appeared in Year: 1999

Question

MCQ▾

An amplifier is assumed to have a single pole high frequency transfer function. The rise time of its output response to a step function input is 35 nsec. The upper-3 dB frequency (in MHz) for the amplifier to a sinusoidal input is approximately at.

Choices

Choice (4)Response

a.

20

b.

4.55

c.

28.6

d.

10

Question 220

Appeared in Year: 2004

Question

MCQ▾

Assume that the of transistor is extremely large and and in the circuit shown in the figure.

The Circuit Consisting Transistor with Resistors

Choices

Choice (4)Response

a.

b.

c.

d.

Question 221

Appeared in Year: 2002

Question

MCQ▾

A triangular voltage waveform is applied at the input to the circuit shown. Assume the diodes to be ideal.

The Triangular Waveform Applied

Determine the minimum value of input voltage.

Choices

Choice (4)Response

a.

3.57 V

b.

2.06 V

c.

5.65 V

d.

10.5 V

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