Physics · Oct / Nov 2016 · Paper 12 · Question 31
5054Simple magnetism and magnetic fields
Delicate instruments are often placed in a box to screen them from stray magnetic fields. What is the material used for the box and why is it chosen?
- AAluminium is used because it is a non-magnetic material.
- BCopper is used because it has a low electrical resistance.
- CPolythene is used because it is a good electrical insulator.
- DSoft iron is used because it is a magnetic material.
As printed in the paper
Show the answer
Correct answer: D. Soft iron is used because it is a magnetic material.
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.