The rotor (shown below), which sits on ball bearings and is spun by the engine's accessory belt, consists of finger poles placed over top of a bunch of copper windings making up the field coil.

The diagram shows four different positions of the coil in an alternator, and the corresponding potential difference produced. Figure caption, The potential difference-time graph for an alternator.

The armature is then rewound with high-quality wire, ensuring each coil is expertly placed. Next, we focus on restoration, which includes shaping wooden parts for support and reassembling the ...

A – The coil is at 360°, ie it is back at its starting point, having done a full rotation. The coil is moving parallel to the direction of the magnetic field, so no potential difference is induced.

There are basically two types of ignition systems in use in stock car racing. There is the inductive ignition in which the current goes directly to the coil and then directly to the distributor.

For anyone involved in the construction of small electric vehicles it has become a matter of great interest that a cheap high-power electric motor can be made from a humble car alternator. It&#8217… ...

In this vintage Corvette tech guide we explain ignition coil troubleshooting with C1, C2, and early C3 Chevrolet Corvettes using simple tools at home - Corvette Fever Magazine ...

For most riders, bicycle lighting consists of an array of LED lamps and flashing gizmos, usually powered by lithium-ion batteries, or coin cells for the smaller ones. Some people though prefer to d… ...

The excitation MOSFET can deliver up to 13 A to the coil, which is more than typical alternator regulators can provide, thus improving response to fluctuating demands.