GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 240 - 243 of 1076

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Question 240

Appeared in Year: 1998

Question

MCQ▾

The circuit of the figure is an example of feedback of the following type

Circuit Consisting Bipolar Junction Transistor with Source Volt

Choices

Choice (4)Response

a.

Current Series

b.

Current shunt

c.

Voltage Shunt

d.

Voltage Series

Question 241

Multi-Stage, Differential, Feedback, Power and Operational

Appeared in Year: 2003

Question

MCQ▾

Three identical amplifier with each one having a voltage gain of 50, input resistance of 1 and output resistance of are cascaded. The open circuit voltage gain of the combined amplifier is

Choices

Choice (4)Response

a.

98 dB

b.

49 dB

c.

51 dB

d.

102 dB

Question 242

Appeared in Year: 2003

Question

MCQ▾

An ideal saw-tooth voltages wave of frequency of 500 Hz and amplitude 3 Volts is generated by charging a capacitor of in every cycle. The charging requires

Choices

Choice (4)Response

a.

Constant voltage source of 1 volts for 3 ms

b.

Constant voltage source of 3 volts for 1 ms

c.

Constant current source of 1 mA for 1 ms

d.

Constant current source of 3 mA for 2 ms

Question 243

Appeared in Year: 2000

Question

MCQ▾

The most commonly used amplifier in sample and hold circuits is

Choices

Choice (4)Response

a.

Unity gain non-inverting amplifier

b.

Unity gain inverting amplifier

c.

An inverting amplifier with a gain of 100

d.

An inverting amplifier with a gain of 10

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