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Analog-designs Questions Set 34:

Quiz Mode

In a Wien Bridge Oscillator, what is the phase shift at the resonant frequency?

90 degrees

60 degrees

180 degrees

0 degrees

Solution:

For a transresistance amplifier, the input resistance with feedback, R_if, is given by:

∞ always

R_i

R_i.(1+Aβ)

R_i/(1+Aβ)

0 always

Solution:

Which of the following components is necessary during the process of rectification?

Step-down transformer

Rectifier

Filter

Voltage regulator circuits

All of the above

Solution:

With the positive probe of an ohmmeter on the base of a PNP transistor, the reading between the other transistor terminals should be:

open

infinite

low resistance

high resistance

Solution:

An audio signal is band limited to 4 kHz. It is sampled at 8 kHz. What will be the sampled signal?

-4 kHz to 4 kHz

-8 kHz to 8 kHz

Every 4n kHz and repeating

Every ±8 kHz and repeating, as well as at 0 Hz

Solution:

If an intrinsic semiconductor is doped with a small amount of aluminum, then in the resulting extrinsic semiconductor, the number of electrons and holes will:

decrease

increase and decrease respectively

increase

decrease and increase respectively

Solution:

What is the voltage drop across a diode in piecewise linear mode?

Constant and equal to the knee voltage

Constant and equal to twice the knee voltage

Varies exponentially with voltage after the knee voltage

Varies linearly with voltage after the knee voltage

Solution:

A silicon semiconductor diode when subjected to ohmmeter testing gives high resistance in both directions. Which of the following is the correct inference to be drawn?

Diode is faulty

Power failure to the Ohmmeter

Diode is short-circuited

Diode is open circuited

Solution:

Which of the following represents a cascode amplifier?

Cascade of two common-emitter (CE) amplifiers

Cascade of two common-base (CB) amplifiers

Cascade of a common-emitter (CE) and a common-base (CB) amplifier

Cascade of a common-base (CB) and a common-collector (CC) amplifier

Solution:

Which of the following statements about a passive low pass filter (LPF) is not true?

A passive low pass filter consists of capacitance, inductance or resistance only.

All the above statements are true.

The roll-off rate of an n^th order filter is "n * -20 dB/decade"

For a second order passive LPF, the gain at the corner frequency is 0.25 V_in.

Analog-designs Questions Set 34:

In a Wien Bridge Oscillator, what is the phase shift at the resonant frequency?

Solution:

For a transresistance amplifier, the input resistance with feedback, R_if, is given by:

Solution:

Which of the following components is necessary during the process of rectification?

Solution:

With the positive probe of an ohmmeter on the base of a PNP transistor, the reading between the other transistor terminals should be:

Solution:

An audio signal is band limited to 4 kHz. It is sampled at 8 kHz. What will be the sampled signal?

Solution:

If an intrinsic semiconductor is doped with a small amount of aluminum, then in the resulting extrinsic semiconductor, the number of electrons and holes will:

Solution:

What is the voltage drop across a diode in piecewise linear mode?

Solution:

A silicon semiconductor diode when subjected to ohmmeter testing gives high resistance in both directions. Which of the following is the correct inference to be drawn?

Solution:

Which of the following represents a cascode amplifier?

Solution:

Which of the following statements about a passive low pass filter (LPF) is not true?

Solution:

Related Question Sets:

Related Topics:

Analog-designs Questions Set 34:

In a Wien Bridge Oscillator, what is the phase shift at the resonant frequency?

Solution:

For a transresistance amplifier, the input resistance with feedback, Rif, is given by:

Solution:

Which of the following components is necessary during the process of rectification?

Solution:

With the positive probe of an ohmmeter on the base of a PNP transistor, the reading between the other transistor terminals should be:

Solution:

An audio signal is band limited to 4 kHz. It is sampled at 8 kHz. What will be the sampled signal?

Solution:

If an intrinsic semiconductor is doped with a small amount of aluminum, then in the resulting extrinsic semiconductor, the number of electrons and holes will:

Solution:

What is the voltage drop across a diode in piecewise linear mode?

Solution:

A silicon semiconductor diode when subjected to ohmmeter testing gives high resistance in both directions. Which of the following is the correct inference to be drawn?

Solution:

Which of the following represents a cascode amplifier?

Solution:

Which of the following statements about a passive low pass filter (LPF) is not true?

Solution:

Related Question Sets:

Related Topics:

For a transresistance amplifier, the input resistance with feedback, R_if, is given by: