Which material can be made magnetic by hammering or stroking it with another magnet?
1. Glass rod
2. Copper wire
3. Iron nail
4. Lead tube

Only 1

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Only 3

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1 and 4

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2 and 3

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Solution

The correct option is B Only 3
There are many ways of making a magnet. The easiest way to make a magnet is the stroking method. If you stroke an iron bar with one end (or one pole) of a bar magnet repeatedly in the same direction, the iron bar becomes a magnet.

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Similar questions

State true or false
Non - magnetic materials: Rubber, wood, plastic.
Magnetic materials : Steel, iron nails, cobalt.

Which of the following statement is/are true

(i) As long as a metal has some iron in it, you can magnetize it using a magnet

(ii) A magnet is an oxide of iron, hence materials which have iron or is an oxide of iron can be made into a temporary magnet.

_______ is the property of magnet by which it attracts iron pieces or other magnetic materials.

Question 4

North pole of a magnet can be identified by

(a) Another magnet having its poles marked as North pole and South pole.

(b) Another magnet no matter whether the poles are marked or not.

(d) Using iron filings.

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