What type of voltage does the purser coil produce?

The purser coil, commonly found in various applications related to electrical engineering and ignition systems, generates alternating current (AC) voltage. This is primarily due to its design and the principles of electromagnetic induction. When the coil operates, it interacts with a magnetic field, which induces a voltage that alternates in polarity due to the changing magnetic flux.

In contrast, direct current (DC) has a constant polarity and does not change direction. The functions of a purser coil are not suited for generating DC, given that it relies on the fluctuation of magnetic fields to produce a voltage that periodically reverses. Thus, the nature of the output from a purser coil is inherently AC, aligning with the principles of how these coils are constructed and the behavior of the electrical current they produce.