Which electronic device converts AC to DC, such as a bridge circuit of diodes?

Which electronic device converts AC to DC, such as a bridge circuit of diodes?

• A. Inverter
• B. Rectifier
• C. Oscillator
• D. Transformer

Answer: (B)

Rectification is the process of turning AC into DC. A bridge circuit of diodes forms a full‑wave rectifier, which uses four diodes to make current flow in one direction through the load during both halves of the AC cycle, producing pulsating DC that can be smoothed with capacitors. An inverter turns DC into AC, an oscillator generates AC signals, and a transformer changes AC voltage levels without converting to DC. So the device described is a rectifier.

Rectification is the process of turning AC into DC. A bridge circuit of diodes forms a full‑wave rectifier, which uses four diodes to make current flow in one direction through the load during both halves of the AC cycle, producing pulsating DC that can be smoothed with capacitors. An inverter turns DC into AC, an oscillator generates AC signals, and a transformer changes AC voltage levels without converting to DC. So the device described is a rectifier.