No, Yes.
Its bypassed with the start ignition circuit. Voltage is already low during start.
It's in the coil feed in the running ignition circuit. As it cools off at higher car speeds (with more air exhange in the engine compartment) it resistance goes down a little compared with the car stopped. The resistor's job is to keep the coil from getting excessively hot. With the correct resistor a coil will be saturated in time for the next spark.
