Which component in the DC generator produces a magnetic field?

The total enthalpy required to cause the flame to be self-sustaining and promote ignition, is given by the product of the surface area of the spherical flame and the enthalpy per unit area.

A spark can be caused by applying a sufficiently low voltage between two electrodes separated by a gap.

Capacitor stores which type of energy?

At the start of the engine, the charging voltage is _______

What is the final current while charging a capacitor?

What is a maintenance-free battery?