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Analog-designs Questions Set 40:

Quiz Mode

What is the ideal numeric value of a Class A amplifier's efficiency?

90%

75%

50%

25%

Solution:

The color code of a 10k ohm resistor is

Brown, Black, Orange

Brown, Black, Yellow

Black, Yellow, Brown

Red, Red, Yellow

Solution:

Calculate the peak inverse voltage (PIV) across each diode of a bridge rectifier circuit where the RMS value of the input AC voltage is 18 V.

36 V

25.46 V

12.72 V

9 V

Solution:

The built-in potential of the gate junction of a p-n channel JFET is 0.5 V. The drain current saturates at V_DS = 4 V when V_GS = 0. The pinch-off voltage is:

5 V

-8 V

4 V

7 V

Solution:

Which statement among the following is not an advantage of a full-wave bridge rectifier?

It is cheap and simple to design.

Low ripples in the output DC signal.

Low power loss

High rectifier efficiency

Solution:

Assume μ_nC_ox = 100 μA/V² and supply current is 5 mA, what should be the aspect ratio (W/L) so that a 50 Ω load can be used to give a voltage gain of 0.25 in a CD (common-drain) configuration?

8.6

12.2

26.5

32.6

Solution:

The open loop voltage gain of an amplifier is 240. The noise level in the output without feedback is 100 mV. If negative feedback with a feedback factor of 1/60 is used, the noise level in the output will be ____.

10 mV

1.5 mV

2.4 mV

20 mV

Solution:

A silicon sample "P" is doped with 10¹⁵ atoms/cm³ of Aluminum. Another sample "Q" of identical dimensions is doped with 10¹⁵ atoms/cm³ of Phosphorus. The ratio of electron to hole mobility is 2. The ratio of conductivity of sample P to sample Q is:

1/2

1/4

Solution:

Calculate ID for VGS = 1.41 V, and VTH = 0.5V, and the (W/L) ratio of MOSFET = 10. Assume that the current source will always be in the Saturation Region. µnCox = 100 * 10-6.

Note: - Write the answer in mA without units and exactly up to two decimal places only

Solution:

The correct statement among the following is,

The average value of continuous DC voltage is always equal to its maximum peak value.

Almost all multimeters only measure RMS value of voltage and current.

Peak value of voltage is 0.707 times the RMS value.

AC signals are not always sinusoidal signals

Analog-designs Questions Set 40:

What is the ideal numeric value of a Class A amplifier's efficiency?

Solution:

The color code of a 10k ohm resistor is

Solution:

Calculate the peak inverse voltage (PIV) across each diode of a bridge rectifier circuit where the RMS value of the input AC voltage is 18 V.

Solution:

The built-in potential of the gate junction of a p-n channel JFET is 0.5 V. The drain current saturates at V_DS = 4 V when V_GS = 0. The pinch-off voltage is:

Solution:

Which statement among the following is not an advantage of a full-wave bridge rectifier?

Solution:

Assume μ_nC_ox = 100 μA/V² and supply current is 5 mA, what should be the aspect ratio (W/L) so that a 50 Ω load can be used to give a voltage gain of 0.25 in a CD (common-drain) configuration?

Solution:

The open loop voltage gain of an amplifier is 240. The noise level in the output without feedback is 100 mV. If negative feedback with a feedback factor of 1/60 is used, the noise level in the output will be ____.

Solution:

A silicon sample "P" is doped with 10¹⁵ atoms/cm³ of Aluminum. Another sample "Q" of identical dimensions is doped with 10¹⁵ atoms/cm³ of Phosphorus. The ratio of electron to hole mobility is 2. The ratio of conductivity of sample P to sample Q is:

Solution:

Calculate ID for VGS = 1.41 V, and VTH = 0.5V, and the (W/L) ratio of MOSFET = 10. Assume that the current source will always be in the Saturation Region. µnCox = 100 * 10-6.

Note: - Write the answer in mA without units and exactly up to two decimal places only

Solution:

The correct statement among the following is,

Solution:

Related Question Sets:

Related Topics:

Analog-designs Questions Set 40:

What is the ideal numeric value of a Class A amplifier's efficiency?

Solution:

The color code of a 10k ohm resistor is

Solution:

Calculate the peak inverse voltage (PIV) across each diode of a bridge rectifier circuit where the RMS value of the input AC voltage is 18 V.

Solution:

The built-in potential of the gate junction of a p-n channel JFET is 0.5 V. The drain current saturates at VDS = 4 V when VGS = 0. The pinch-off voltage is:

Solution:

Which statement among the following is not an advantage of a full-wave bridge rectifier?

Solution:

Assume μnCox = 100 μA/V² and supply current is 5 mA, what should be the aspect ratio (W/L) so that a 50 Ω load can be used to give a voltage gain of 0.25 in a CD (common-drain) configuration?

Solution:

The open loop voltage gain of an amplifier is 240. The noise level in the output without feedback is 100 mV. If negative feedback with a feedback factor of 1/60 is used, the noise level in the output will be ____.

Solution:

A silicon sample "P" is doped with 1015 atoms/cm3 of Aluminum. Another sample "Q" of identical dimensions is doped with 1015 atoms/cm3 of Phosphorus. The ratio of electron to hole mobility is 2. The ratio of conductivity of sample P to sample Q is:

Solution:

Calculate ID for VGS = 1.41 V, and VTH = 0.5V, and the (W/L) ratio of MOSFET = 10. Assume that the current source will always be in the Saturation Region. µnCox = 100 * 10-6. Note: - Write the answer in mA without units and exactly up to two decimal places only

Solution:

The correct statement among the following is,

Solution:

Related Question Sets:

Related Topics:

The built-in potential of the gate junction of a p-n channel JFET is 0.5 V. The drain current saturates at V_DS = 4 V when V_GS = 0. The pinch-off voltage is:

Assume μ_nC_ox = 100 μA/V² and supply current is 5 mA, what should be the aspect ratio (W/L) so that a 50 Ω load can be used to give a voltage gain of 0.25 in a CD (common-drain) configuration?

A silicon sample "P" is doped with 10¹⁵ atoms/cm³ of Aluminum. Another sample "Q" of identical dimensions is doped with 10¹⁵ atoms/cm³ of Phosphorus. The ratio of electron to hole mobility is 2. The ratio of conductivity of sample P to sample Q is:

Calculate ID for VGS = 1.41 V, and VTH = 0.5V, and the (W/L) ratio of MOSFET = 10. Assume that the current source will always be in the Saturation Region. µnCox = 100 * 10-6.

Note: - Write the answer in mA without units and exactly up to two decimal places only