Class 12 Physics · Chapter 5 · Test 4
Rectification and Induction
44 MCQs
44 questions · 40 min · 44 marks
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Sample questions
The first 5 of 44. Try each one, then tap to see the answer.
Question 1
Rectification is the process of converting:
- ADC into AC
- BHigh voltage into low voltage
- CAC into DC
- DHeat into current
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Answer: C
Rectification converts alternating current into direct current.
Question 2
A diode conducts large current when it is:
- AReverse biased
- BForward biased
- CUnbiased
- DDamaged
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Answer: B
A diode allows current in the forward bias direction and blocks it in reverse bias.
Question 3
A half-wave rectifier uses:
- AFour diodes
- BTwo diodes
- COne capacitor only
- DA single diode
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Answer: D
A single diode in series with a load resistance gives half-wave rectification.
Question 4
During the positive half-cycle of the input in a half-wave rectifier the diode is:
- AForward biased and current flows through the load
- BReverse biased
- CDamaged
- DOpen circuited permanently
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Answer: A
In the interval 0 to T/2 the diode is forward biased and conducts.
Question 5
During the negative half-cycle the half-wave rectifier diode is:
- AForward biased
- BReverse biased so practically no current flows
- CConducting with high current
- DAt zero bias
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Answer: B
In the interval T/2 to T the diode is reverse biased and offers very high resistance.
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