ANALOG CIRCUITS

Select a device that eliminates the fluctuations in the rectified voltage and produces a relatively

smooth dc voltage.

• Filter

• Rectifier

• Regulator

• Transformer

The ripple factor for half wave rectifier is ____

• 1.21

• 1.414

• 1.3

• 0.48

Identify a circuit that maintains a constant DC voltage for variation in input line voltage or in the

load.

• Regulator

• Rectifier

• Filter

• Amplifier

Justify, why a full-wave rectifier has twice the efficiency of a half-wave rectifier?

• it utilzes both half-cycle

• It makes use of transformer

• Its ripple factor is much less

• Its output frequency is double the line frequency.

Determine the average output voltage of half wave rectifier, If the input sine wave is 100sin50t.

• 31.8

• 41.8

• 25

• 18.8

Choose the correct statement

• capacitor blocks dc and allows ac

• capacitor blocks ac and allows dc

• capacitor blocks both ac and dc

• capacitor allows both ac and dc

A 100μF capacitor when used as a filter has 15V ac across it with a load resistor of 2.5KΩ. If the

filter is the full wave and supply frequency is 50Hz, Calculate the percentage of ripple frequency in

the output.

• 1.154%

• 2.456%

• 3.786%

• 3.675%

Determine the average output current of full wave rectifier, If the input sine wave is 100sin314t.

• 63.66A

• 72.22A

• 10.26A

• 69.22A

Identify the amplifier, which provides an output current is proportional to the input current, and

the proportionality factor is independent of the magnitudes of the source resistance (Rs) and load

resistance (RL).

• Current Amplifier

• Voltage Amplifier

• Transconductance Amplifier

• Transresistance Amplifer

Determine the value of I for a silicon BJT operating under fixed bias configuration, RB = 100KΩ, RC

= 2.2 KΩ, Vcc = 10V, VBE =0.7V

• 0.093 mA

• 0.93 mA

• 0.083 mA

• 0.073 mA