Answer-A device used for converting A.C.into D.C.is called–

A rectifier is an electrical device that converts alternating current AC, which periodically reverses direction, to direct current DC, which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, solidstate diodes, silicon-controlled rectifiersandothersilicon-basedsemiconductor switches.