"La señal representa a la electricidad"

Question

I´m wondering if that sentence is correct. I don´t understand why the "a" is in there "Representar", as far as I know, does not require a preposition when it precedes an object.

Answer 1

without the "a".

"representa la electricidad"

Answer 2

Representar can be followed by the personal a or not. In your case, it does not need it.

Examples:

Juan representa a su hijo en la junta escolar. (personal a)

Juan representa la promesa de un país libre. (no personal a needed)