Interpoles are additional poles which are placed between the main poles in a dc machines. These poles are designed to counteract the effect...

Armature Reaction refers to a phenomenon in DC machines where the magnetic field of the poles is distorted by the magnetic field produced by...

IREDs or InfraRed Emitting Diodes are a type of LEDs which emit light in the infrared range of the electromagnetic spectrum. IREDs are widel...

A British Company, deciwatt.org has developed a simple, low cost light which can be used by remote communities isolated from the main elect...

Magnetic pickup sensors are used to measure the speed of rotating objects such as shafts, flywheels, etc.  These sensors generate a sinusoid...

Induction stoves work on the principle of induction.  The stove contains a coil which is excited by a high frequency AC supply.  Above this ...