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WorksheetsTechnical Quiz Set 3 level 2
Total questions: 10
Worksheet time: 5mins
How can a monostable multivibrator using IC 555 be used as a PWM generator?
If a diode is connected across the resistor RA
If a modulating signal m(t) is applied at the control pin
If the control pin is always kept high
It cannot be used as a PWM generator ever
In the given block diagram of an op-amp. What are A, B, C and D?
A = Dual input and balanced output differential amplifier, B = Dual input and unbalanced output differential amplifier, C = Level shifter, D = Power amplifier
A = Dual input and balanced output differential amplifier, B = Dual input and balanced output differential amplifier, C = Dual input and unbalanced output differential amplifier, D = Normal amplifier
A = Dual input and unbalanced output differential amplifier, B = Dual input and balanced output differential amplifier, C = Voltage regulator, D = Power amplifier
A = Normal amplifier, B = Dual input and unbalanced output differential amplifier, C = Level shifter, D = Dual input and balanced output differential amplifier
A practical op-amp has a bandwidth of only 10 Hz. Gain is 106, and the required bandwidth is 100 kHz. How much feedback is required?
0.99% negative feedback
0.99% positive feedback
1% negative feedback
1% positive feedback
From the given characteristics, what is the approximate value of IC at IB=30 uA and VCE=10 V?
3 mA
3.4 mA
0 mA
2 mA
What is IC 723?
A voltage regulator
A full-wave rectifier
A half-wave rectifier
A clipper
Find the power rating of the diode in the given circuit. The breakdown voltage of the diode is 5V.
200 mW
125 mW
250 mW
300 mW
Which of these is a not drawback of Zener diode shunt regulator?
The output voltage is fixed
The output voltage can vary with temperature
Variation in load current needs to be minimal
It is difficult to design
When an electronic circuit is in equilibrium then which of the following equation is valid?
Jdrift + Jdiffusion = 1
Jdrift + Jdiffusion = 0
Jdrift + Jdiffusion = -1
Jdrift + Jdiffusion = 2
What will be the output of the following circuit? (Assume 0.7V drop across the diode)
12V
12.7V
11.3V
0V
Which of the following formula represents the correct formula for width of the depletion region?
