Principles of Technology

Electrical Work (2:3)

Vocabulary (pages 65-72)







How many electrons are in 1 coulomb?






Units of electrical work


What is the relationship between Joules and Newton·meters


Formula for electrical work (and solve using the units)



Formula for electrical charge (and solve using the units)



Formula for electrical efficiency (and solve using the units)



How much work is needed to recharge a dead 12 volt battery if it can hold 24,000 coulombs of charge?



Nathan is using a 110 volt AC Skilsaw which draws 13 amps. He operates it for 2 minutes while attempting to cut out some plywood shelving. Assuming he doesn't cut off his foot in the process, how much charge is moved, and how much work is done moving it?



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