Question

this is the symbol for a a transformer. b capacitor. c relay. d timer.

Explanation:

The symbol shown is a standard electrical - circuit symbol for a transformer, which consists of two coils (primary and secondary) separated by a vertical line representing the magnetic core or isolation. Capacitor symbols typically involve parallel lines or curved plates, a relay has different contact - based symbols, and a timer has its own distinct symbol.

Answer:

A. transformer