How will you test whether a given rod is made of iron or copper? - Physics

How will you test whether a given rod is made of iron or copper?

टीपा लिहा

Bring the rod near the magnet, iron rod will get attracted towards the magnet while copper will not.

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पाठ 8: Electricity and Magnetism - Magnestism [पृष्ठ ३२०]

पाठ 8 Electricity and Magnetism
Magnestism | Q 4 | पृष्ठ ३२०

You are given a magnet. How will you use it to find north-south direction at a place?

Answer the following in short.

If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be

With whom should I pair up?

There are two knitting needles. One of them is magnetized. How will you find out which one is magnetized, if no other magnet is available?

Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.

What is the material of darkened part?

Since every iron atom is a tiny magnet, why are not all iron bar magnets?

Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.

The south pole of a bar magnet and the north pole of a U-shaped magnet will _______.

Which is not attracted by a magnet?

What are the factors that determine the strength of the magnet?