Utilization of Magnetic Effect

Utilization of Magnetic Effect Points : Utilization of Magnetic Effect If produces an imaginary bar magnet. When a piece of soft iron which as not been previo9usiy magnetized is brought near the end of the coil, it will be attracted by the coil. Therefore, if we pivot the soft iron on a spindle between two bearings and a coil is mounted near it, the iron piece will swing into the coil when the latter is carrying current. The effect is utilized in the attraction type of moving iron instrument. If we have two pieces of soft iron placed near the coil the Iwo will be similarly magnetized and there will be force of repulsion between them. The effect is utilized in repulsion type moving iron instrument.