How many of the following materials can be attracted by a magnet ?
1. Plastic
2. Carbon
3. Aluminium
4. Stainless Steel
Select the correct answer using the code given below :
1
2
3
None
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-2 – 2023
Magnetically permeable materials are attracted by magnets. Ferromagnetic materials like iron, nickel, cobalt, and some alloys (including certain types of stainless steel) are strongly attracted. Paramagnetic materials like aluminium are weakly attracted. Diamagnetic materials like carbon and plastic are weakly repelled. When a general question asks if a material is “attracted by a magnet,” it usually implies strong attraction (ferromagnetism).