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Analog-designs Questions Set 27:

Quiz Mode

Collector efficiency of Class B power amplifier is

65%

50%

75%

20%

Solution:

In case of schmitt trigger, if R2=20Kohm, VH=500 mV and Vsat=5V, then the value of R1 is

Solution:

Determine the unit of mobility ?

cm^2 / Volt – sec

cm^2 / Volt

cm/ Volt – sec

cm^1/2 / Volt – sec

Solution:

Calculate the negative feedback (β) of an amplifier if the voltage gain without the feedback is 350 and the voltage gain with the negative feedback is 15.

0.081

0.25

0.064

0.75

Solution:

Calculate the AC gain of an op-amp which has an input frequency of 3000 Hz. The unity gain bandwidth of the op-amp is 12 MHz and the open loop gain is 4×10⁵.

2000

3000

4000

5000

Solution:

The phenomenon known as 'Early Effect' in a bipolar transistor refers to a reduction of the effective base-width caused by

electron-hole recombination at the base

the reverse-biasing of the base-collector junction

Solution:

If the two stages of an amplifier have the respective rise times as T_r1 and T_r2, then in a cascade connection the resultant rise time T_r is given by which of the following?

T_r = T_r1 + T_r2

T_r = T_r1 - T_r2

T_r = 1.1 √[(T_r1)² + (T_r2)²]

T_r = 1.1 √[(T_r1)² - (T_r2)²]

Solution:

The statement that is not true for a Darlington amplifier is:

It has high input impedance and low output impedance.

It has a current gain of 1000 or more.

It consists of one NPN and one PNP transistor.

It has a common collector (emitter follower) configuration.

Solution:

What is line regulation?

The process of keeping Zener diode voltage constant despite changes in AC supply

The process of keeping load voltage constant irrespective of the fluctuation in AC supply or the line voltage

The process of keeping load voltage constant irrespective of fluctuation in load current

The process of keeping Zener current constant irrespective of fluctuation in AC supply

Solution:

Which of the following statements about intrinsic semiconductors is false?

A pure form of semiconductors is called an intrinsic semiconductor

Conduction in an intrinsic semiconductor is either due to thermal excitation or crystal defects

In an intrinsic semiconductor, the number of holes is equal to the number of electrons

Intrinsic semiconductors have a wide range of applications in real life

Analog-designs Questions Set 27:

Collector efficiency of Class B power amplifier is

Solution:

In case of schmitt trigger, if R2=20Kohm, VH=500 mV and Vsat=5V, then the value of R1 is

Solution:

Determine the unit of mobility ?

Solution:

Calculate the negative feedback (β) of an amplifier if the voltage gain without the feedback is 350 and the voltage gain with the negative feedback is 15.

Solution:

Calculate the AC gain of an op-amp which has an input frequency of 3000 Hz. The unity gain bandwidth of the op-amp is 12 MHz and the open loop gain is 4×10⁵.

Solution:

The phenomenon known as 'Early Effect' in a bipolar transistor refers to a reduction of the effective base-width caused by

Solution:

If the two stages of an amplifier have the respective rise times as T_r1 and T_r2, then in a cascade connection the resultant rise time T_r is given by which of the following?

Solution:

The statement that is not true for a Darlington amplifier is:

Solution:

What is line regulation?

Solution:

Which of the following statements about intrinsic semiconductors is false?

Solution:

Related Question Sets:

Related Topics:

Analog-designs Questions Set 27:

Collector efficiency of Class B power amplifier is

Solution:

In case of schmitt trigger, if R2=20Kohm, VH=500 mV and Vsat=5V, then the value of R1 is

Solution:

Determine the unit of mobility ?

Solution:

Calculate the negative feedback (β) of an amplifier if the voltage gain without the feedback is 350 and the voltage gain with the negative feedback is 15.

Solution:

Calculate the AC gain of an op-amp which has an input frequency of 3000 Hz. The unity gain bandwidth of the op-amp is 12 MHz and the open loop gain is 4×105.

Solution:

The phenomenon known as 'Early Effect' in a bipolar transistor refers to a reduction of the effective base-width caused by

Solution:

If the two stages of an amplifier have the respective rise times as Tr1 and Tr2, then in a cascade connection the resultant rise time Tr is given by which of the following?

Solution:

The statement that is not true for a Darlington amplifier is:

Solution:

What is line regulation?

Solution:

Which of the following statements about intrinsic semiconductors is false?

Solution:

Related Question Sets:

Related Topics:

Calculate the AC gain of an op-amp which has an input frequency of 3000 Hz. The unity gain bandwidth of the op-amp is 12 MHz and the open loop gain is 4×10⁵.

If the two stages of an amplifier have the respective rise times as T_r1 and T_r2, then in a cascade connection the resultant rise time T_r is given by which of the following?