When calculating power for a series circuit we must look at the polarity of the voltages to calculate the voltage first

Biology Sep 11, 2020

When calculating power for a series circuit we must look at the polarity of the voltages to calculate the voltage first. If all are positive, then the voltage is the sum of them all; however, if polarities are different then it is the difference. Any resistors must also be calculated for in a series circuit.

Attached is an example if you feel like solving for P!