Three equal resistors connected in series across a source of emf together dissipate 10 watts of ...

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Three equal resistors connected in series across a source of emf together dissipate 10 watts of power. What would be the power dissipated if the same resistors are connected in parallel across the same source of emf?
(A) 60 watt
(B) 90 watt
(C) 100 watt
(D) 30 watt
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