Losing Magnetism

Q.

Can you demagnetize a neodymium magnet?

Q.

Which of the following does not affect the magnetic properties of a magnet?

1. Heat

2. Dropped from a height

3. Hammering

4. Painting

Q. What are permanent magnets made up of?

Q.

A bar magnet loses its strength when it is

1. hammered

2. heated

3. both (A) and (B)

4. none of these

Q. How can magnetic properties of a magnet be destroyed?​

Q.

Which of the following activities will result in the loss of magnetic properties of a magnet?

1. By dropping the magnet in the ocean

2. Heating

3. Hammering

4. magnetic property always remains the same.

Q. Permanent magnetism are demagnetized by:

1. Heating
2. Hammering
3. Dropping from a height
4. Keeping in water

Q.

Which among the following is an incorrect method of destroying magnetism of a magnet?

1. Hammering

2. Heating to high temperatures

3. Jarring

4. Breaking into two pieces

Q.

when we we make any iron piece a magnet, is that iron piece also have north and south poles?