Question

why is it not advisable to slide a magnet on an iron bar back and forth during magnetising it,​

Answer 1

Answer:

Explanation:

Magnet Basics

With so many people using magnets in more and more places, we thought we would take a moment to step back and discuss some of the basics.  How do magnets attract to one another?  How do they repel?  How can I magnetize a steel screwdriver?

Magnet Basics

Magnets can either attract or repel each other.

A permanent magnet is an object that produces a magnetic field around itself.  It is this field that enables them to stick to each other and to some types of metal.  Specifically, they stick to ferromagnetic materials like iron and things that contain iron, such as steel.  This includes everything from your car's steel body to your refrigerator door.  They're also attracted to nickel and cobalt, and a few other rare-earth elements.

Magnets won't stick to most other types of metal, including aluminum or copper.

Answer 2

when we slide back and forth then each of the magnetizing stroke is demagnetized back.

Explanation:

It is not advised to slide a magnet on an iron bar back and forth during magnetizing it because the magnetized domains will get demagnetized on tracing the motion back on the iron bar. The magnetization occurs because the electrons magnetic domains align themselves in one direction, this happens either naturally or by artificial circumstances.

Here when we slide the magnet along the iron bar it is an artificial situation of magnetization. But when we slide back and forth then each of the magnetizing stroke is demagnetized back.

#learnmore

TOPIC: magnetizing

brainly.in/question/7684557