Multiple choice

A triac is like a ______.

  1. NPN transistor

  2. PNP transistor

  3. unidirectional SCR

  4. bidirectional SCR

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A TRIAC (Triode for Alternating Current) acts as a bidirectional switch, allowing current to flow in both directions, similar to two SCRs connected in anti-parallel.