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DMRC 2018 Electronics Engineering : Quiz 10

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Question 1

Two parallel metal plates maintained at a potential difference of 1000 V are separated by 0.02 m. An electron is placed between the two plates. The force experienced by the electron is

Question 2

When a load of is connected across a 20 mA current source, it is found that only 18 mA flows in the load. What is the internal resistance of the source?

Question 3

When a certain motor is operated for 30 minutes, it consumes 0.75 kWh of energy. During that time, its total energy loss is How many joules of work does it perform in 30 minutes?

Question 4

The open loop transfer function of a unity feedback control system is given by

For the system to be stable the range of K is

Question 5

The loop transfer function of the system. The root locus plot of the system has

Question 6

An 8085 microprocessor executes “STA 1234H” with starting address location 1FFEH (STA copies the contents of the Accumulator to the 16-bit address location). While the instruction is fetched and executed, the sequence of values written at the address pins is

Question 7

The Unilateral Laplace transformation of sin2(2t)is

Question 8

If the amplification factor of a certain transistor in Emitter follower configuration is 287. What would be its amplification factor when it is used in a configuration with unity current gain? (upto 3 decimal digits)

Question 9

A communication channel of bandwidth 35 kHz is required to transmit binary data at a rate of 0.05 Mbps using raised-cosine pulses. The roll off factor α is __________.

Question 10

A parallel polarized wave propagates from air into a dielectric at Brewster angle of 70°. The relative permittivity of the dielectric is ________.

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Jan 13ESE & GATE EC