Jobs By Abekus

Analog-designs Questions Set 56:

Quiz Mode

Calculate the thermal voltage at room temperature (27°C).

10mV

20mV

26mV

22mV

Solution:

Why can't a JFET provide high voltage gain?

low values of μ

large values of μ

large values of G_m

low values of g_m

Solution:

A MOSFET is designed to operate at I_d = 0.1 mA such that g_m = 1 mA/V. If K_n' = 50 μA/V², what is the required W/L ratio?

100

175

Solution:

If the emitter resistance of a transistor increases, the collector voltage

decreases

stays the same

increases

breaks down the transistor

Solution:

On which principle does a Zener diode work?

Thermionic emission

None of the above

Tunneling of charge carriers across the junction

Hopping of charge carriers

Solution:

Which of the following equations does not hold for a MOSFET operating in the linear region?

Id = Kn * [(VGS-VT)VDS - (VDS^2)/2]

VGS > VT

VDS < VGS - VT

VDS > VGS - VT

Solution:

Which of these is incorrect for an operational amplifier?

It has a high voltage gain

It is a direct coupled amplifier

It is only useful for amplifying AC signals

It was originally designed to perform mathematical operations

Solution:

Op-amps are used as amplifiers in which region?

the entire range of the input voltage.

the linear region limited by -Vt/2 and +Vt/2 (approximately).

the linear region limited by -Vt and +Vt (approximately).

the saturation region, i.e., Vin >> Vt.

Solution:

Which of the following is true about the photoelectric effect?

The maximum velocity of the emitted electrons increases with decreasing wavelength of the incident light.

The velocity of emitted electrons is dependent on the light intensity.

The rate of photoelectron emission is inversely proportional to the light intensity.

Both holes and electrons are produced in the photoelectric effect.

Solution:

Which of the following statements about a zener voltage regulator is false?

The zener diode is always reverse biased and is connected in parallel to the load.

The purpose is to maintain a constant DC output voltage across the load despite variations in the input voltage.

The zener voltage regulator consists of a current limiting resistor Rs connected in parallel with the input voltage.

The stabilized output voltage is always selected to be the same as the breakdown voltage Vz of the zener diode.

Analog-designs Questions Set 56:

Calculate the thermal voltage at room temperature (27°C).

Solution:

Why can't a JFET provide high voltage gain?

Solution:

A MOSFET is designed to operate at I_d = 0.1 mA such that g_m = 1 mA/V. If K_n' = 50 μA/V², what is the required W/L ratio?

Solution:

If the emitter resistance of a transistor increases, the collector voltage

Solution:

On which principle does a Zener diode work?

Solution:

Which of the following equations does not hold for a MOSFET operating in the linear region?

Solution:

Which of these is incorrect for an operational amplifier?

Solution:

Op-amps are used as amplifiers in which region?

Solution:

Which of the following is true about the photoelectric effect?

Solution:

Which of the following statements about a zener voltage regulator is false?

Solution:

Related Question Sets:

Related Topics:

Analog-designs Questions Set 56:

Calculate the thermal voltage at room temperature (27°C).

Solution:

Why can't a JFET provide high voltage gain?

Solution:

A MOSFET is designed to operate at Id = 0.1 mA such that gm = 1 mA/V. If Kn' = 50 μA/V2, what is the required W/L ratio?

Solution:

If the emitter resistance of a transistor increases, the collector voltage

Solution:

On which principle does a Zener diode work?

Solution:

Which of the following equations does not hold for a MOSFET operating in the linear region?

Solution:

Which of these is incorrect for an operational amplifier?

Solution:

Op-amps are used as amplifiers in which region?

Solution:

Which of the following is true about the photoelectric effect?

Solution:

Which of the following statements about a zener voltage regulator is false?

Solution:

Related Question Sets:

Related Topics:

A MOSFET is designed to operate at I_d = 0.1 mA such that g_m = 1 mA/V. If K_n' = 50 μA/V², what is the required W/L ratio?