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 With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals?

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 With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals 60 W.

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Power is the only thing which is additive in both connection whether it is parallel or series connection so total power consumed will addition of all individual power =20+20+20 = 60 watt
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