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Analog-designs Questions Set 22:

Quiz Mode

The unit of admittance is:

Siemens

Farad

Henry

Ohm

Solution:

What is the feedback factor of an R-C phase shift oscillator?

1/29

1/3

1/180

1/45

Solution:

Cavities embedded in a heat source are also known as

Low sink

Sink hole

On-sink

Inverted sink

Solution:

Calculate the resistance value of a carbon resistor with the following color code: Blue, Grey, Orange, and Gold.

680 Ω ± 10%

6.8 kΩ ± 10%

68 kΩ ± 5%

680 kΩ ± 5%

Solution:

Consider sinusoidal modulation in am Am system. Assuming no over-modulation, the modulation index , when the maximum and minimum values of the envelop are 3 V and 1 V s

Solution:

What characteristic should a good trans-conductance amplifier have?

High input resistance and low output resistance

Low input resistance and high output resistance

High input and output resistance

Low input and output resistance

Solution:

One necessary condition for oscillations is?

a gain around the feedback loop of less than 1

a phase shift around the feedback loop of 0°

a phase shift around the feedback loop of 180°

a gain around the feedback loop of one-third

Solution:

Which of the following conditions should be satisfied while configuring a high-pass filter as a differentiator?

The input signal can either be sinusoidal or a ramp signal.

The output should be measured across the capacitor.

The resistor should be as high as possible.

The value of R should be at least 10 times smaller than Xc.

Solution:

What is the emitter efficiency for n-p-n bipolar junction transistors (BJTs)?

Ratio of electron current in emitter to sum of hole current and electron current in emitter

Ratio of hole current in emitter to sum of hole current and electron current in emitter

Ratio of hole current in emitter to electron current in emitter

Ratio of electron current in emitter to hole current in emitter

Solution:

What is the reverse saturation current of a common emitter transistor?

Collector current when emitter is open-circuited and base-collector junction is reverse-biased

Emitter current when collector is open-circuited and base-collector junction is reverse-biased

Base current when emitter circuit is open-circuited and emitter-collector junction is reverse-biased

Collector current when base circuit is open-circuited

Analog-designs Questions Set 22:

The unit of admittance is:

Solution:

What is the feedback factor of an R-C phase shift oscillator?

Solution:

Cavities embedded in a heat source are also known as

Solution:

Calculate the resistance value of a carbon resistor with the following color code: Blue, Grey, Orange, and Gold.

Solution:

Consider sinusoidal modulation in am Am system. Assuming no over-modulation, the modulation index , when the maximum and minimum values of the envelop are 3 V and 1 V s

Solution:

What characteristic should a good trans-conductance amplifier have?

Solution:

One necessary condition for oscillations is?

Solution:

Which of the following conditions should be satisfied while configuring a high-pass filter as a differentiator?

Solution:

What is the emitter efficiency for n-p-n bipolar junction transistors (BJTs)?

Solution:

What is the reverse saturation current of a common emitter transistor?

Solution:

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