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Three equal resistors connected in series with a battery dissipate P Watts of power what will be the bear power dissipated if the same resistance are connected in parallel across the battery

Three equal resistors connected in series with a battery dissipate P Watts of power what will be the bear power dissipated if the same resistance are connected in parallel across the battery

Grade:12

1 Answers

Arun
25750 Points
6 years ago
 
Let R be the value of each resistance. & Vr be the voltage of battery.
When the 3 resistance are connected in series,
Power dissipated (P) = V2/ 3R
When they are connected in parallel,
Power dissipated P' = 3 V2/ R
Hence 
P' = 9P

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