Rectifier Quiz 2: Multiple choice Numerical question

After searching we came with some more questions based on rectifiers. Most of you find it difficult to answer them correctly. To enhance your knowledge related to this field we made this quiz  little bit difficult from the previous one. In our previous tutorial, we provided rectifier basic quiz. This section consists of multiple choice questions quiz on Rectifier intermediate. Take the test and check out your knowledge about rectifier.

Multiple-choice Quiz instructions:

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• For every question click the button and select one best option out of four options.
• If you want to change an answer, simply click the button for your new choice.
• This test includes timer of 3 minutes is displayed on the left side in the lower portion of the screen.
• After completion, click the Finish button shown at the end of the test.
• Your score will be shown immediately after clicking the finish button and all of the correct answers will then be marked with a green line.

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#1. In half wave rectifier,the load current flows

for more than half cycle of the input signal

for more than half cycle of the input signal

for whole cycle of the input signal

for whole cycle of the input signal

only for the positive half cycle of the input signal

only for the positive half cycle of the input signal

for less than half cycle of the input signal

for less than half cycle of the input signal

#2. Under normal operating voltage, the reverse current in a silicon diode is about

1 µA

1 µA

1000 µA

1000 µA

10 mA

10 mA

None of these

None of these

#3. A half-wave rectifier circuit with a capacitive filter is connected to a 200 volts, 50 Hz ac line. The output voltage across the capacitor should be approximately

300 volts

300 volts

80 volts

80 volts

380 Volts

380 Volts

280 Volts

280 Volts

#4. The RMS value of a half wave rectifier current is 10 A. Its value for full wave rectification would be

15 A

15 A

20.2 A

20.2 A

14.14 A

14.14 A

(20/π) A

(20/π) A

#5. In a bridge Full wave rectifier, if Vm is the peak voltage across the secondary of the transformer, the maximum voltage coming across each reverse biased diode is

Vm

Vm

2 Vm

2 Vm

Vm / 2

Vm / 2

Vm / √ 2

Vm / √ 2

#6. The rms value of half wave-rectified sine wave with Im as peak value is

0.5 Im

0.5 Im

0.318 Im

0.318 Im

0.66 Im

0.66 Im

0.707 Im

0.707 Im

#7. For single phase supply frequency of 50 Hz, ripple frequency in full wave rectifier is

100

100

50

50

25

25

125

125

#8. At reverse bias, the number of minority carriers crossing the junction of a diode depends primarily on the

magnitude of the potential barrier

magnitude of the potential barrier

rate of thermal generation of electron hole pairs

rate of thermal generation of electron hole pairs

concentration of doping impurities

concentration of doping impurities

all of these

all of these

#9. In a crystal diode, the barrier potential offers opposition to only

Holes in p-region

Holes in p-region

minority carriers in both regions

minority carriers in both regions

Free electrons in n-region

Free electrons in n-region

majority carriers in both regions

majority carriers in both regions

#10. When voltage applied to a diode is more than PIV, it is likely to result in

Conduction in both direction

Conduction in both direction

Breakdown at the junction.

Breakdown at the junction.

Poor regulation

Poor regulation

More distortion on output side

More distortion on output side

Finish