This document discusses power calculations in electrical circuits. It shows that total power (PT) in a circuit equals the sum of individual powers (P1 + P2 + P3...). It then calculates the power of two resistors in a circuit, which add up to 3kW total. It demonstrates that total power can be calculated from current and total resistance, or from total voltage and current. The document concludes by instructing the reader to complete review questions on power calculations.