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ESE EC Exam 2018: Practice Quiz 6

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Question 1

Carson’s bandwidth for an angle modulated carrier

is given by

Question 2

A pulse signal having 100 KHz frequency and 70 nsec rise time to be measured on an oscilloscope. The minimum required bandwidth of the oscilloscope is

Question 3

The two numbers represented in signed 2’s complement from are P = 11101101 and Q = 11100110. If Q is subtracted from P, the value obtained in signed 2’s complements is

Question 4

The concept of electromagnetic propagation was first introduced by

Question 5

The electron density profile in a piece of semiconductor at equilibrium is such that

The hole density profile will be such that

Question 6

For a single phase fully controlled converter bridge operating with continuous load current, the converter will operate in inverting mode for triggering angle,

such that: