Post Circuit breakers And you!!!. Electrical Power I a)Show that Watts = amps * volts b)For a house running 120V, how much current is drawn by a 2W clock?

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Presentation transcript:

Post Circuit breakers And you!!!

Electrical Power I a)Show that Watts = amps * volts b)For a house running 120V, how much current is drawn by a 2W clock? 1200W hair dryer? c)Why do houses have circuit breakers?

Electrical Power II A 6V battery (DC) is attached to a light bulb (R = 3Ω) and motor (R = 9Ω) in series. The wires have a combined R = 0.5Ω. Calculate: a.I in circuit b.V drop across the bulb and motor c.Power consumed by bulb and motor d.Number of electrons that leave the battery each second e.Energy carried by each electron f.Energy dropped off by an electron in bulb? Motor?