On the Eastern sections of the Historic Columbia River Highway between Hood River and The Dalles the hillsides are now green in their sublime spring beauty. Wildflowers and wild grasses abound. Get out there in early spring, because the eastern Columbia River Gorge landscape is usually brown by the middle of May.
Magneto Motive Force is expressed as a current, I flowing through a coil of N turns. The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.
For example, the output from the power pack might be something like 300 volts or so. The ignition coil boosts that current to very high voltage (sometimes as high as 10,000 to 15,000 volts depending on the application) which is required to fire the spark plugs and burn the fuel in the cylinder.