Alternator

1. The document outlines a lecture on electromagnetic motors and generators, discussing electric motors, magnetic induction, direct current (DC) generators, and alternating current (AC) generators. 2. It explains how electric motors convert electrical energy to mechanical energy using a current-carrying coil and magnetic field. Magnetic induction and Faraday's Law are then discussed, showing how changing magnetic flux induces current. 3. Generators are described as the reverse of motors, using mechanical energy to induce current and produce electrical energy output. Both DC and AC generators are outlined.