Answer to Question #61550 in Electric Circuits for Sakura
The starter motor in a car is a small but powerful electrical device that "turns over" the gasoline-powered engine, moving it through a cycle to get it started. The starter may draw 1.80X10^2 A from the 12.0 V battery for 2.00s.
a)What is the source of the emf in this case?
b)If the time starter was running doubled, by how much would the number of electrons running in the circuit change?