Rectifiers are used to convert: A. Direct current to Alternating current B. Alternating current to Direct current C. High voltage to low voltage D. Low voltage to high voltage

Direct current to Alternating current
Alternating current to Direct current
High voltage to low voltage
Low voltage to high voltage

The correct answer is: B. Alternating current to Direct current.

A rectifier is an electrical device that converts alternating current (AC) to direct current (DC). This is done by using a semiconductor device, such as a diode, to allow current to flow in only one direction. Rectifiers are used in a variety of applications, including power supplies, battery chargers, and inverters.

Option A is incorrect because rectifiers do not convert DC to AC. Option C is incorrect because rectifiers do not convert high voltage to low voltage. Option D is incorrect because rectifiers do not convert low voltage to high voltage.