120th Problem 2016

Electricity and Magnetism Level 2

Given the parallel circuit above with the following values:

R 1 = 100 Ω R 2 = 300 Ω R 3 = 600 Ω V T = 150 V { R }_{ 1 }=100\Omega \\ \\ { R }_{ 2 }=300\Omega \\ \\ { R }_{ 3 }=600\Omega \\ \\ { V }_{ T }=150V

Find the P 3 { P }_{ 3 } (Power) of the circuit.

Part One .
Check out the set: 2016 Problems .
This is part eight of a problem.


The answer is 37.5.

Angela Fajardo by Angela Fajardo , 19, Philippines

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1 solution

As voltage is same across all resistors in parallel connection V=150 Now p3=V^2/R3 Where R3 is 600 So from here we get 37.5watt

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