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3 cards from this section. Quick, good the night before a test.
What is the formula for calculating electric power?
Think about the letters that represent power, voltage, and current.
Express electrical energy in terms of power and time.
Consider how energy is connected to time and power.
What is the formula used to calculate electric power?
Remember the basic components that make up power.
True or False: Electric energy can be measured in kilowatt-hours.
Think about how energy consumption is billed in households.
A device rated at 1500 W is used for five hours a day. Calculate the total energy consumption in kWh for a month.
Remember to calculate daily energy consumption before multiplying by the number of days.
In a circuit, a lamp consumes 60 W when the voltage is 120 V. What is the current flowing through the lamp?
Use the power formula and remember to solve for current by rearranging the equation.
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