Rectification often requires ___ and ___.

Rectification often requires ___ and ___.

• A. Resistors and Capacitors
• B. Inductors and Capacitors
• C. Transistors and Diodes
• D. Transformers and Inductors

Answer: (B)

When you convert AC to DC with a rectifier, the output is a pulsating DC that still has ripple. To obtain smooth DC, a filtering stage is used. An LC filter, which combines an inductor and a capacitor, is a common and effective choice. The capacitor charges during the peaks and supplies current when the voltage dips, while the inductor resists sudden changes in current, helping dampen the ripple. This pairing is especially useful after a full-wave rectifier, where ripple occurs at twice the mains frequency, so the LC network can significantly reduce those ripple components and produce a steadier DC level. A capacitor alone can smooth somewhat but isn’t as effective at deep ripple suppression, and the other options don’t provide the same filtering action without the complementary capacitor.

When you convert AC to DC with a rectifier, the output is a pulsating DC that still has ripple. To obtain smooth DC, a filtering stage is used. An LC filter, which combines an inductor and a capacitor, is a common and effective choice. The capacitor charges during the peaks and supplies current when the voltage dips, while the inductor resists sudden changes in current, helping dampen the ripple. This pairing is especially useful after a full-wave rectifier, where ripple occurs at twice the mains frequency, so the LC network can significantly reduce those ripple components and produce a steadier DC level. A capacitor alone can smooth somewhat but isn’t as effective at deep ripple suppression, and the other options don’t provide the same filtering action without the complementary capacitor.