# GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 704 - 706 of 1076

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## Question 704

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?

### 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

## Question 705

Appeared in Year: 2019

### Question

MCQ▾

The quantum efficiency (η) and responsivity (R) at a wavelength (in µm) in a p-i-n photodetector are related by (Carry One Mark Each)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 706

Divergence and Curl, Gauss's, Green's and Stoke's Theorems

Appeared in Year: 2019

### Question

MCQ▾

Consider the line integral

The integral being taken in a counterclockwise direction over the closed curve C that forms the boundary of the region shown in the figure below. The region R is the area enclosed by the union of a rectangle and a semi-circle of radius . The line integral evaluates to

### Choices

Choice (4)Response

a.

b.

c.

d.

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