Why is electric field inversely proportional to distance?
The total number of flux lines depends on the strength of the light source and is constant with increasing distance, where a greater density of flux lines (lines per unit area) means a stronger energy field. Thus the field intensity is inversely proportional to the square of the distance from the source.
What happens to the force between magnetic pole?
Explanation: The force between two magnetic poles is directly proportional to the product of their strengths and is inversely proportional to the square of the distance between them.
What happens to the force between magnetic poles when their pole strength and the distance between them both gets doubled?
Force decreases to half-the previous value.
What happens to the force between magnetic poles when their pole strength and distance between them are doubled?
The force between two magnetic poles is F in air. If the pole is doubled that second pole is tripled and the distance between the poles is halved the force between the poles becomes and increase by.
What happens if a nonmagnetic material is brought near to a magnet?
A nonmagnetic material doesn’t have any domain structure. Domains can be induced into alignment. Consider a common iron nail. If you bring a magnet is brought nearby, the domains of the iron nail will align in such a way that, the north pole of iron domains will face the south pole of the magnet, and visa versa.
Can lead become magnetized?
Lead is not ferromagnetic do it can not be magnetized or even attracted by a magnet. A lump of lead is not magnetic, it is diamagnetic because it can interact slightly with magnetic fields.
Can steel be permanently magnetized?
The Use of Steel in Permanent Magnets In its natural state, steel isn’t magnetic, but it can be modified in a way that turns it magnetic. Steel isn’t the only material used to make permanent magnets. Permanent magnets are also made of ceramic, iron, cobalt, nickel, gadolinium and neodymium.
How do you demagnetize metal permanently?
Demagnetization processes include heating past the Curie point, applying a strong magnetic field, applying alternating current, or hammering the metal. Demagnetization occurs naturally over time. The speed of the process depends on the material, the temperature, and other factors.
What metals attract magnets?
Iron