A device used to prevent wearing away of the make and-brake contacts of an induction coil is called a\an
Answer Details
The device used to prevent wearing away of the make and-break contacts of an induction coil is called a capacitor. A capacitor is an electrical component that stores energy in an electric field. It consists of two conductive plates separated by an insulating material called a dielectric. In the context of an induction coil, a capacitor is used to reduce the arcing that occurs at the make and-break contacts. This is because when the contacts are separated, the voltage across them rises rapidly, and without a capacitor, this can cause arcing and damage to the contacts. The capacitor absorbs this voltage, preventing arcing and extending the life of the contacts.