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GATE 2020:Topper's Quiz-10 (App update required to attempt this test)

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Question 1

In a transistor circuit , I_CO = I_CBO = 2

, also it is given that

Then the value of I_CEO is _______().

Question 2

For an octal number system for five variables, what is the maximum number of Boolean functions possible?

Question 3

The PDF of a random variable X is given by
$Description: Description: 08_Analog-Comm_BL-done_files\image024.png$
The constant ‘K’ is ________.

Question 4

A DMA (Direct memory access) data transfer imply?

Question 5

A plane wave having the electric field component

and traveling in free space is incident normally on a lossless medium with m = m₀ and e = 9e₀ which occupies the region y ≥ 0. The reflected magnetic field component is given by

Question 6

Under which of the following conditions, the N-MOS transistor operates in depletion mode?

Question 7

If a donor impurity is added to the extent of one atom per 10⁸ Ge atoms, calculate its resistivity at 300^oK. Assume μn= 3800 cm²/V.s.[By properties of Germanium, no. of atoms per cm³ is 4.4x10²² atoms/cm³.]

Question 8

Find the stability factor for the circuit shown below.

Question 9

The cut-off wave number of an air-filled rectangular waveguide having dimensions (3cm × 1cm) is ____________ rad/m.

Question 10

The open loop transfer function for a unity feedback (negative) system is

with steady-state ramp error of 0.1. If system is modified to include a forward path zero at s = –6 then the value of damping factor is ____

Question 11

A right circularly polarized (RCP) plane wave is incident at an angle of 60 ° to the normal, on an air-dielectric interface. If the reflected wave is linearly polarized, the relative dielectric constant

is:

Question 12

Consider the power spectrum of a random process

given by

The average power contained by the signal is ______W,

Question 13

The effective area of a transmitting antenna is one square meter, the effective area of the receiving antenna is 0.9 square meter and wavelength is 0.03m. If distance between the transmitter and receiver is 100 m and the power transmitted is 100 W, then the power received will be____W

Question 14

The forward-path transfer function of a unity feedback system is

For system to be stable, the range of K is

Question 15

If directive gain of a half wave dipole is 2.64 W/W, and ohmic losses is 8Ω, then determine its power gain(in dB).

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ESE & GATE EC General

Oct 28ESE & GATE EC