GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 447 - 449 of 1076

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Question 447

Appeared in Year: 2016 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

It is said that Kirchhoff՚s current law has never been found to be invalid.

Reason(Ꭱ)

The current law is based on the principle of conservation of charge.

Choices

Choice (4)Response

a.

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

b.

Ꭺ is true but Ꭱ is false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Question 448

Appeared in Year: 2016 (UGC-NET)

Question

MCQ▾

The 8085 enters into bus idle machine cycle whenever

(1) INTR interrupt is recognized

(2) RST is recognized

(3) When content of register B is 00h

(4) DAD rp instruction is executed

Choices

Choice (4)Response

a.

(2) and (4) are correct

b.

(3) and (4) are correct

c.

(2) and (3) are correct

d.

(1) and (3) are correct

Question 449

SNR and BER for Digital Modulation

Appeared in Year: 2018 (UGC-NET)

Question

Assertion-Reason▾

Assertion(Ꭺ)

Nyquist rate of sampling is the theoretical minimum sampling rate at which signal can be sampled and still be reconstructed from its samples. (December)

Reason(Ꭱ)

When the Nyquist rate sampling is used, only an ideal low pass filter can be used to extract signal from sampled signal .

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 false

c.

Ꭺ is false but Ꭱ is true

d.

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

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