Electrical Power
We investigate the concept of electrical power by examining our own energy usage with an energy audit. Multiple electric power equations are derived, exploring the relationship between electric power and Ohm's law.
We investigate the concept of electrical power by examining our own energy usage with an energy audit. Multiple electric power equations are derived, exploring the relationship between electric power and Ohm's law.
Learning Objectives
-Define electrical power as the electrical work done per unit time.
-Calculate electrical power with equations derived using Ohm’s Law.
-Connect the concept of electrical power to the real world by performing an energy audit.
-Define electrical power as the electrical work done per unit time.
-Calculate electrical power with equations derived using Ohm’s Law.
-Connect the concept of electrical power to the real world by performing an energy audit.
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Vocabulary
efficiency - ratio of the total energy output divided by the energy input into a device. electrical power (P) - the electrical work done per unit time; SI unit is the watt (W). electrical work (W) - the work done on a charged particle by an electric field.
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