GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 936 - 940 of 1076

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Question 936

Appeared in Year: 2017

Question

MCQ▾

In a DRAM,

Choices

Choice (4)Response

a.

Information is stored in a capacitor

b.

Periodic refreshing is not required

c.

Both read and write operations can be performed simultaneously

d.

Information is stored in a Latch

Question 937

Appeared in Year: 2016

Question

MCQ▾

A first order low pass filter of time constant T is excited with different input signals (with zero initial conditions up to ) Match the excitation signals with the corresponding signals with the corresponding time response for :

Choices

Choice (4)Response

a.

b.

c.

d.

Question 938

Amplitude Modulation and Demodulation

Appeared in Year: 2017

Question

Numeric Answer▾

The un-modulated carrier in an AM transmitter is . This carrier is modulated by a sinusoidal modulating signal. The maximum percentage of modulation is . If it is reduced to , then the maximum unmodulated carrier power (in kW) that can be used without over loading the transmitter is …

Question 939

Appeared in Year: 2016

Question

Numeric Answer▾

A sequence is specified as

The initial conditions are . The value of is …

Question 940

Appeared in Year: 2015

Question

MCQ▾

A network is described by the state model as

The transfer function is …

Choices

Choice (4)Response

a.

b.

c.

d.

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