Electric Circuits - Checking a Circuit with a Power Balance
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One method of checking calculations in volving interconnected circuit elements is to see that the total power delivered equals the total power absorbed...
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Solution Summary
A detailed solution is given to this problem of checking the accuracy of a circuit by doing a power balance. Sign conventions play a key role.
Solution Preview
This key to this problem is how the voltage and current signs are defined.
When current through the element flows from the negative to the positive terminal it is a power source. When the current through the ...
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