GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 297 - 301 of 1076

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Question 297

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

In an intrinsic semiconductor, the intrinsic carrier density is: (July)

Choices

Choice (4)Response

a.

b.

c.

d.

Question 298

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

A good silicon APD has a capacitance of , with negligible dark current and is operating with a post detection bandwidth of MHz. The photocurrent before gin is given by Amp. The operating temperature is the value of Load resistor to be connected with APD is given by: (July)

Choices

Choice (4)Response

a.

b.

c.

d.

Question 299

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

In a circuit shown below, the base current is: (July)

The Base Current IB

Choices

Choice (4)Response

a.

b.

c.

d.

Question 300

Fourier Series and Fourier Transform Representations

Appeared in Year: 2018 (UGC-NET)

Question

MCQ▾

The following statements are correct for DSB-SC signal:

1) It is a low pass filter.

2) It needs minimum transmitted power.

3) It is a result of product modulator.

4) Bandwidth of DSB-SC is twice the maximum frequency. (July)

Choices

Choice (4)Response

a.

1) , 2) and 3) are correct

b.

2) and 4) are correct

c.

1) , 2) and 4) are correct

d.

3) and 4) are correct

Question 301

Question

MCQ▾

The guided wavelength of rectangular resonator is given by ________.

Choices

Choice (4)Response

a.

b.

c.

d.

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