07_AC_electricity

Winter 2008 ucsd physics 121 2008 14 ucsd physics 121

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Unformatted text preview: -170 Volts Winter 2008 13 120 VAC is a root-mean-square number: peak-to-peak is 340 Volts! Winter 2008 UCSD: Physics 121; 2008 14 UCSD: Physics 121; 2008 AC Receptacle Assignment • Receptacles have three holes each • Lower (rounded) hole is earth ground • Read 6.9.1 on grounding – connected to pipes, usually – green wire • Larger slot is “ neutral” neutral” – – – – for current “return” never far from ground white wire if wired correctly • Smaller slot is “ hot” hot” – swings to +170 and 170 – black wire – dangerous one Winter 2008 Lecture 7 15 Winter 2008 16 4...
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