SCEN103 Class 9

ac and Power Distribution Demonstration of oscilloscope and ac, alternating current         Explanation of operation of oscilloscope     Observation of various dc voltage levels on scope     Observation of 60 Hz signal on scope     Calculation of 60 Hz from period of oscillation How Television Works from How Stuff Works

Discussion of electrical power consumption Introduction to transformers Discussion of power distribution How the Power Distribution Grid Works     from How Stuff Works