The diagram above shows a PN junction diode connected as depicted. What will be the behavior of the diode?
Correct answer: B. Current flows because diode is forward-biased
- A. No current flows because diode is reverse-biased
- B. Current flows because diode is forward-biased
- C. Breakdown occurs
- D. Depletion region increases significantly
Explanation
The P-side is connected to the positive terminal and the N-side to the negative terminal → forward bias. Forward bias reduces the depletion width and allows current to flow.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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