Directive Property of Magnet

Q. What is a fundamental difference between the south and north pole of a magnet?

Q.

Give two applications of magnets.

Q.

List some important applications of magnet.

Q. Harish was asked to identify a soft iron placed in a basket with 9 other magnets of the same shape and size. Which is the easiest way of identifying the iron piece at the earliest?

1. By dropping all the magnets into the water.
2. By conducting repulsion test using any two magnets at a time.
3. By suspending the magnets one at a time.
4. By heating all the magnets together.

Q. Magnets when suspended freely align themselves in direction.

1. East-West
2. North-East
3. North-South
4. South-North

Q.

A small magnet is suspended by a silk thread from a rigid support such that the magnet can freely swing. How will it come to rest?

1. It will come to rest with its north pole towards geographic north in a perfect straight line.

2. It will come to rest in geographic north-south direction with north pole towards geographic north, making some angle with the horizontal.

3. It will come to rest with its north pole towards geographic south, making some angle with the horizontal.

4. It will come to rest with its south pole towards geographic north, making some angle with the horizontal.

Q.

Which of the following statement is correct?

1. Rubber is a magnetic material.

2. The strength of a magnet near the centre is maximum.

3. Steel is not a magnetic material.

4. Bar magnets point towards North-South direction when suspended freely.

Q.

Provided a metal piece and a thread, what else is necessarily required to find out if the metal piece is a magnet or not?

1. A piece of magnetic substance.

2. A magnet or a compass.

3. A piece of non-magnetic substance.

4. We do not require anything more.

Q. A freely suspended magnet on Earth aligns itself in the _________ direction.

1. East-South
2. North-South
3. North-West
4. East-West