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16-12-2017
Physics

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What is the power dissipated by the parallel resistor circuit shown above?

What is the power dissipated by the parallel resistor circuit shown above class=

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17-12-2017

One formula for power is

P = (voltage squared)/(resistance).

Resistance of 3 equal resistors in parallel is 1/3 of the value = 100/3 ohms.

Power = (40^2)/ (100/3)

. = (1600 • 3) / (100)

. =. 48 watts .

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