NEW
Font size
WorksheetsLIC-Quiz 2
Total questions: 10
Worksheet time: 5mins
The diode in a half wave rectifier has a forward resistance RF. The voltage is Vmsinωt and the load resistance is RL. The DC current is given by ------
Vm/√2RL
Vm/(RF+RL)π
2Vm/√π
Vm/RL
Which of the following isn’t a type of rectifier?
Precision Half-wave Rectifier
Bridge Rectifier
Peak Rectifier
None of the mentioned
The practical use of binary-weighted digital-to-analog converters is limited to
R/2R ladder D/A converters
4-bit D/A converters
8-bit D/A converters
op-amp comparators
How many clock pulses do a successive approximation converter requires for obtaining a digital output
Twelve
Six
Eight
None of the above
A full wave rectifier is a combination of
Schmitt trigger and integrator
Summer and Half wave rectifier
Half wave rectifier and Schmitt trigger
Differential amplifier and sine wave generator
A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 0101.
0.3125 V
3.125 V
0.78125 V
–3.125 V
What is the major advantage of the R/2R ladder digital-to-analog (DAC), as compared to a binary-weighted digital-to-analog DAC converter?
It only uses two different resistor values.
It has fewer parts for the same number of inputs.
Its operation is much easier to analyze.
The virtual ground is eliminated and the circuit is therefore easier to understand and troubleshoot
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 output as a function of the input voltage (for positive values) for the given figure. Assume it’s an ideal op-amp with zero forward drop (Di=0)
0
-Vi
Vi
2Vi
The below figure arrives to a conclusion that _________
for Vi > 0, V0=-(R2/R1)Vi
for Vi > 0, V0=0
Vi < 0, V0=-(R2/R1)Vi
Vi < 0, V0=0
