Identify the condition in which a diode is biased to oppose forward conduction.

Identify the condition in which a diode is biased to oppose forward conduction.

• A. Band-pass
• B. Solid-state
• C. Reverse bias
• D. Three-phase Rectifier

Answer: (C)

Reverse bias is when the diode is driven so as to oppose forward conduction: the anode is at a lower potential than the cathode, opposite to the direction that would allow current. This widens the depletion region and blocks carriers, so only a tiny reverse leakage current flows until breakdown voltage is reached. The other terms refer to different concepts or circuit types, not the bias condition described.

Reverse bias is when the diode is driven so as to oppose forward conduction: the anode is at a lower potential than the cathode, opposite to the direction that would allow current. This widens the depletion region and blocks carriers, so only a tiny reverse leakage current flows until breakdown voltage is reached. The other terms refer to different concepts or circuit types, not the bias condition described.