Uses of diodes include:

Uses of diodes include:

• A. Power packs and charging units to convert alternating current to direct current
• B. Diodes store energy
• C. Diodes increase resistance
• D. Diodes produce sound

Answer: (A)

Diodes act as one-way valves for current, so they’re ideal for turning alternating current into direct current. In power packs and charging units, the AC from the mains is converted to DC because most batteries and electronic circuits need a steady direction of current. A rectifier circuit uses diodes to pass the positive halves of the AC and block the negative halves, producing pulsating DC, which is then smoothed into a steadier DC with filtering components. Diodes don’t store energy—that’s the job of capacitors or batteries. They don’t purposefully increase resistance; their resistance varies with current, but their main role is to control current direction. They also don’t produce sound by themselves; they’re used in circuits that shape or convert signals, not as sound sources.

Diodes act as one-way valves for current, so they’re ideal for turning alternating current into direct current. In power packs and charging units, the AC from the mains is converted to DC because most batteries and electronic circuits need a steady direction of current. A rectifier circuit uses diodes to pass the positive halves of the AC and block the negative halves, producing pulsating DC, which is then smoothed into a steadier DC with filtering components.

Diodes don’t store energy—that’s the job of capacitors or batteries. They don’t purposefully increase resistance; their resistance varies with current, but their main role is to control current direction. They also don’t produce sound by themselves; they’re used in circuits that shape or convert signals, not as sound sources.