The semiconductor diode can be used as a rectifier because _______________?
Correct answer: A. It has low resistance to the current flow when forward biased & high resistance when reverse biased.
- A. It has low resistance to the current flow when forward biased & high resistance when reverse biased.
- B. It has low resistance to the current flow when forward biased.
- C. It has high resistance to the current flow when reverse biased
- D. Its conductivity increases with rise of temperature.
Explanation
A diode rectifies because its low forward resistance permits substantial current in one direction, while its high reverse resistance blocks the opposite half cycle. Both properties are needed for effective one-way conduction. The likely mistake is choosing b or c alone, since each states only one of the two required conditions.
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About Rectification
Rectification converts alternating current into unidirectional current using semiconductor diodes. The content includes half wave and full wave rectifiers, bridge circuits, output waveforms, ripple and smoothing with capacitors, with the difference between rectification and voltage regulation kept clear.
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