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-- Two loads ... each of which dissipates 210 watts on a 120V supply ...

when wired in parallel, dissipate 420 watts.

-- Two others in series also want to dissipate 420 watts, so each of those

dissipates 210 watts on a 60V supply.

Power dissipated is proportional to the square of the voltage, so on a 120V supply,

each of these would dissipate 840 watts .

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โˆ™ 2011-05-29 21:24:57
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Q: What wattage of heaters would you use if 2 are wired in series with 120 vac to equal same as 2 heaters of 210 wattage each wired in parallel?
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