AC vs electrical

AC

noun
  • Companion of the Order of Australia. 

phrase
  • as charged, as in: guilty as charged, usually a/c. 

name
  • Aceh, an autonomous province of Indonesia. 

  • Acre, a state of Brazil. 

electrical

adj
  • Related to electricity (or electronics) 

noun
  • An electrical engineer. 

How often have the words AC and electrical occurred in a corpus of books? (source: Google Ngram Viewer )