Question

To eliminate error due to non-uniform magnetisation

• A. poles of the magnet to be interchanged
• B. by taking reading of both ends of the pointer
• C. by taking reading on two arms
• D. by cutting the magnetic needle

Answer 1

The correct option is A poles of the magnet to be interchanged

So non-uniform magnetization is a problem with the magnets , they have to be exchanged to see the results