While the answer to this question is obvious today, 130 years ago it was not so clear. Around your home, you have dozens of electronic devices that use either AC or DC - or more likely - a combination of both. That makes the question an example of a false dichotomy.
However, it became the centre of a savage battle between the two heavyweights in the emerging arena of electricity systems. In one corner was the Edison Electric Light Company, who'd based their business on delivering DC power.
