Correct option is D
TRIAC is similar to two SCR connected in anti parallel.
A
TRIAC (Triode for Alternating Current) is a semiconductor device that can conduct current in both directions and is widely used for AC power control. It is structurally equivalent to two
SCRs (Silicon Controlled Rectifiers) connected in
anti-parallel, which means their cathodes are connected to the opposite anodes, allowing bidirectional conduction when triggered.
S.C.R. (Silicon Controlled Rectifier)-
· It is a semiconductor device.
· It is four layer, three terminal and three junction device.
· It is a uni-directional device.
· It is a bipolar device.