Learners examine the current and voltage changes in a series-parallel circuit as the resistance value of a rheostat is varied. Illustrations and calculations are included.

Learners examine the function of the analog wattmeter to measure true power, how it is connected in a circuit, and how the internal components develop a measurement. A brief quiz completes the activity.

In this learning activity you'll explore various ways to calculate the power consumed in a series/parallel circuit.

In this learning activity you'll practice solving for the total resistance of series-parallel DC circuits.