Analog Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 191 - 194 of 249

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Question 191

Appeared in Year: 2013 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

In a common base amplifier voltage gain is more than 1. (September)

Reason(Ꭱ)

In a common base amplifier current gain is less than 1

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question 192

Analog Circuits
Simple Op-Amp Circuits

Appeared in Year: 2019

Question

MCQ▾

In the circuit shown, A and B are the inputs and F is the output. What is the functionality of the circuit? (Carry One Mark Each)

A and B Are the Inputs and F is the Output

Choices

Choice (4)Response

a.

SRAM Cell

b.

Latch

c.

XOR

d.

XNOR

Question 193

Analog Circuits
Biasing, Bias Stability

Appeared in Year: 2010

Question

MCQ▾

In the silicon BJT circuit shown below, assume that the emitter area of transistor is half that of transistor .

The Emitter Area of Transistor

The value of current I0 is approximately

Choices

Choice (4)Response

a.

b.

c.

d.

Question 194

Analog Circuits
Mid-Frequency Small Signal Analysis and Frequency Response

Appeared in Year: 2010

Question

MCQ▾

The amplifier circuit shown below uses a silicon transistor. The capacitors and be assumed to be short at signal frequency and the effect of output resistance can be ignored. If is disconnected from the circuit, which one of the following statements is TRUE?

The Amplifier Circuit Shown below Uses a Silicon Transistor

Choices

Choice (4)Response

a.

Both input resistance and the magnitude of voltage gain decrease

b.

The input resistance increases and the magnitude of voltage gain decreases

c.

Both input resistance and the magnitude of voltage gain increase

d.

The input resistance decreases and the magnitude of voltage gain decreases

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