Anonymous

What Is The Big Prong On A Plug?

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Arthur Wright Profile
Arthur Wright answered
That is your identifier or white/neutral prong
Dave Profile
Dave answered
A/C electrical systems (like house-hold wiring) have a polarity. One line is dedicated as positive or hot (usually the black wire). The return line is the neutral or cold (usually the white wire). A third wire acts as a ground and is a safety device. On a plug, one prong is wider than the other to ensure proper polarity of the device being plugged in.

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