Question:
The forward biased diode connection is :
The forward biased diode connection is :
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A diode is forward biased when its p-side (arrow side, anode) is at a higher potential than its n-side (bar side, cathode).
Updated On: Nov 11, 2026
- Diode (anode on the left) in series with a resistor; left end at \(+2\ \mathrm{V}\), right end at \(-2\ \mathrm{V}\).
- Diode (anode on the left) in series with a resistor; left end at \(-3\ \mathrm{V}\), right end at \(-3\ \mathrm{V}\).
- Diode (anode on the left) in series with a resistor; left end at \(2\ \mathrm{V}\), right end at \(4\ \mathrm{V}\).
- Diode (anode on the left) in series with a resistor; left end at \(-2\ \mathrm{V}\), right end at \(+2\ \mathrm{V}\).
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The Correct Option is A
Solution and Explanation
In every circuit the diode symbol points to the right, so the anode (p-side) is the left end and the cathode (n-side) faces the resistor and the right end.
Forward bias needs \(V_{left}\gt V_{right}\).
(1) \(+2\ \mathrm{V}\gt-2\ \mathrm{V}\): forward biased. (2) \(-3\ \mathrm{V}=-3\ \mathrm{V}\): no potential difference, no bias. (3) \(2\ \mathrm{V}\lt4\ \mathrm{V}\): reverse biased. (4) \(-2\ \mathrm{V}\lt+2\ \mathrm{V}\): reverse biased.
Answer: (1) Diode with +2 V on the anode (left) side and -2 V on the right side
Forward bias needs \(V_{left}\gt V_{right}\).
(1) \(+2\ \mathrm{V}\gt-2\ \mathrm{V}\): forward biased. (2) \(-3\ \mathrm{V}=-3\ \mathrm{V}\): no potential difference, no bias. (3) \(2\ \mathrm{V}\lt4\ \mathrm{V}\): reverse biased. (4) \(-2\ \mathrm{V}\lt+2\ \mathrm{V}\): reverse biased.
Answer: (1) Diode with +2 V on the anode (left) side and -2 V on the right side
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