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1. If you had a meter to investigate the electric power system in your home, what...

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Physics

1. If you had a meter to investigate the electric power systemin your home, what voltage would you measure for the electricitycoming into your home? What frequency is the power coming into yourhome? Do all devices in your home operate at this voltage andfrequency? How do you know?

2. Appliances A, B, and C consume 250, 480 and 1450 watts ofpower, respectively. The system voltage is 120V, and the circuitbreaker is rated at 15 amps. Which combinations of the threeappliances can be on at the same time, and which combinations willtrip the circuit breaker? What assumptions would you have to make?What equations and data would you use?

3. Look around your home at some common appliances - a toaster,fan, space heater, television, computer, etc. Which applianceswould you predict draw a lot of current to operate? Whichappliances would you predict take a lot of power to operate?

Extra credit project: if you would like to investigate this,there is a device called Kill-A-Watt that can measure current,voltage, and power when electrical devices are plugged into them.Measure 10-15 devices in your home and write a mini lab reportdescribing your data and lessons learned by taking thesemeasurements.

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