Electronics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 59 - 63 of 70

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Question 59

Appeared in Year: 2008

Question

MCQ▾

An analog voltage is converted into bit binary number. The minimum number of comparators required and their reference voltage are –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 60

Appeared in Year: 2006

Question

MCQ▾

The low – pass active filer shown in the figure has a cut – off frequency of and a pass band gain of . The values of the resistors are –

Circuit Diagram of Op – Amp

Choices

Choice (4)Response

a.

b.

c.

d.

Question 61

Electronics

Appeared in Year: 2006

Question

MCQ▾

A sinusoidal input voltage of frequency is fed to the circuit shown in the figure, where . If is the peak value of the input voltage, then output voltage is –

Circuit Consists of Two Diodes

Choices

Choice (4)Response

a.

b.

c.

d.

Question 62

Appeared in Year: 2006

Question

MCQ▾

The high input impedance of field effect transistor (FET) amplifier is due to –

Choices

Choice (4)Response

a.

The geometry of the FET

b.

The source and drain being far apart

c.

it՚s very low gate current

d.

The pinch – off voltage

Question 63

Appeared in Year: 2006

Question

MCQ▾

The circuit shown in the figure function as –

Circuit Diagram Consists of Two NPN Transistors

Choices

Choice (4)Response

a.

an AND gate

b.

an OR gate

c.

a NAND gate

d.

a NOR gate

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