The transformer works on the principle of mutual induction between the primary and secondary windings. The induction is caused by the const...

Optocoupler relays are relays in which the changeover of contacts is effected by the switching on or off of a light source which is linked...

When inductive loads such as transformers or motors are switched on, a sudden rush of current into the winding is observed. This is known a...

AC and DC relays work on the same principle, that of, electromagnetic induction. However, there are some differences in construction. DC r...

Autotransformers are transformers which contain only one winding unlike two windings in the conventional transformer. The same winding, ther...

A scope meter is a handheld instrument that is used to see electrical parameters in graphical form. It can be described as a combination of...

An Autotransformer is a transformer with only one winding. See more . A variable autotransformer is an autotransformer with a sliding scale...