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WorksheetsEWB SY ETRX
Total questions: 10
Worksheet time: 5mins
If the input to the ideal comparator shown in the figure is a sinusoidal signal of 8 V (peak to peak) without any DC component, then the output of the comparator has a duty cycle of
1\2
1\3
1\6
1\12
For a system to work, as oscillator the total phase shift of the loop gain must be equal to
90°
45°
270°
360°
An amplifier has a large ac input signal. The clipping occurs on both the peaks. The output voltage will be nearly a
sine wave
square wave
triangular wave
Option 1 or 2
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
3.6
7.2
8.4
10
Which of the following is the 1's complement of 10?
01
110
11
10
NOTA
Derived units are obtained from various combinations of
electrical quantities
fundamental units
metric prefixes
international standards
If current varies periodically from zero to a maximum, back to zero, and then repeats, the signal is:
direct
alternating
pulsating
repetitive
If we use an AND gate to inhibit a signal from passing, one of the inputs must be _________.
LOW
HIGH
inverted
floating
What is the resolution of a digital-to-analog converter (DAC)?
It is the comparison between the actual output of the converter and its expected output.
It is the deviation between the ideal straight-line output and the actual output of the converter.
It is the smallest analog output change that can occur as a result of an increment in the digital input.
It is its ability to resolve between forward and reverse steps when sequenced over its entire range.
What is the resultant binary of the decimal problem 49 + 1 = ______ ?
01010101
00110101
00110010
00110001
