Question

which of the following is NOT a method for making a magnet out of a metal which has the ability to be magnetized
a)by striking the metal
b)by exposing the metal to another magnet
c)by super radiating the metal
d)by running electricity through a coil wrapped around the iron​

Answer 1

Answer:

three types of method

single touch method

double touch method

electric current touch method

Answer 2

The correct answer is

Option

c) by super radiating the metal

This is not a method for making a magnet out of a metal which can be magnetized

The phenomenon occurs in options a) and b) is

• Ferromagnetism could be a development that happens in some metals, most notably iron, atomic number 27 associated degreed nickel, that causes the metal to become magnetic.
• The atoms in these metals have an unmated electron, and when the metal is exposed to a sufficiently robust magnetic field, these electrons' spins line up parallel to every other.
• once 2 metals are interested in one another across space, one or each of them is in all probability magnetic.
• you'll be most accustomed to permanent magnets, which are stronger as a result they need iron in them. this kind of magnetism is called ferromagnetism.

The phenomenon occurs in option d) by running electricity through a coil wrapped around the iron is

• An easy magnet consists of a coil of wire wrapped around an iron core. A core of magnetic attraction material like iron serves to extend the field created.
• The strength of the magnetic field generated is proportional to the number of currents through the winding.
• A semiconductive wire, typically insulated copper, is wound around a metal rod.
• The wire can get hot to the touch, that is why insulation is important.
• The rod on which the wire is wrapped is termed a solenoid, and the ensuing field radiates far away from this point.

Hence,

The correct answer is

c) by super radiating the metal

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