Explore the question in detail with explanation, related questions, and community discussions.
Electric current can be of two main types: Alternating Current (AC), where the flow of electrons changes direction periodically, and Direct Current (DC), where electrons flow in one constant direction. Many electronic devices, such as mobile phones, laptops, and LED lights, require DC power supply to operate properly. The device used to convert AC into DC is called a Rectifier.
AC Input: Electricity supplied by power stations is usually AC because it is efficient for long-distance transmission.
Conversion Process: A rectifier uses diodes, which are semiconductor components that allow current to flow in only one direction.
Output as DC: By blocking the reverse flow of current, the rectifier converts the alternating voltage into a unidirectional current, providing DC output.
Half-Wave Rectifier: Converts only one half-cycle of AC into DC.
Full-Wave Rectifier: Converts both halves of AC into DC, making it more efficient.
Bridge Rectifier: Uses four diodes to provide full-wave rectification with better output quality.
Anemometer: Measures wind speed and has no role in electricity conversion.
Battery: Stores DC power but does not convert AC to DC.
Galvanometer: Measures small electric currents and cannot perform rectification.
Rectifiers are commonly found in power adapters, chargers, and power supply units of electronic devices, ensuring safe and steady DC power for their functioning.Therefore, the correct answer is Rectifier (Option D), as it is the standard device used to convert Alternating Current into Direct Current.
Discussion
Leave a Comment