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DMRC 2018 Electronics Engineering : Quiz 8

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Question 1

Two small spheres, each carrying a charge Q, placed d metres apart repel each other with a force F. If one of the spheres is taken around the other one in a circular path of radius r, the work done will be

Question 2

What is the length of paper used in a capacitor of capacitance $Description: Description: E:\Gate\SSC-JE Electrical - Part 1\6_Capacitance-final_files\image167.png$ if the dielectric constant of the paper is 2.5 and its width and thickness are 50 mm and 0.05 mm respectively?

Question 3

In the given question, what is the shorted terminal current in the equivalent current source?

Question 4

The current drawn by a tungsten filament lamp is measured by an ammeter. The ammeter reading under steady state condition will be ____________ the ammeter reading when the supply is switched on.

Question 5

The steady state error of a unity feedback control system having open loop transfer function K/[s(s+2)] due to step input is:

Question 6

Consider the Mod-3 counter as below:

If two J-K F/Fs are used to realize this counter, what will be the values of J₀, K₀, J₁, K₁?

Question 7

Consider the signal given below,

then the z-transform X(z) is

Question 8

Consider a p – type semiconductor. The semiconductor was doped such that the concentration gradient (concentration of doping with respect to x) is 2.5 x 10⁵/cm. At equilibrium, it was found that electric field is developed inside the semiconductor. The value of electric field is ________ kV/cm.

Question 9

A tone signal

is used to DSB and SSB modulator respectively having same carrier frequency f_c = 200kHz and carrier amplitude A_d and A_s respectively. In order for the modulated signals to have equal power, A_d/A_s is

Question 10

A potential field exists in a region where is

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ESE & GATE EC General

Aug 18ESE & GATE EC