Magnets cannot be made from which of the following substances
Correct answer: C. Copper
- A. Iron
- B. Nickel
- C. Copper
- D. All of the above
Explanation
Magnets are typically made from materials that exhibit ferromagnetism, such as iron and nickel, because they have unpaired electrons that align to create a strong magnetic field. Copper, on the other hand, is diamagnetic and does not have the necessary magnetic properties to become a magnet. Therefore, the correct answer is Copper. The option 'All of the above' is incorrect because it includes iron and nickel, both of which can indeed form magnets.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Physics of Solids
Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
Practise Physics of Solids
320 free Physics of Solids MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 11 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Physics of Solids questions
For protecting a sensitive equipment from the external magnetic field, it should be
Magnetic lines of force due to a bar magnet do not intersect because
A magnetic needle is kept in a non-uniform magnetic field. It experiences
Demagnetization of magnets can be done by
A ferromagnetic material is heated above its curie temperature. Which one is a correct statement
If a diamagnetic substance is brought near north or south pole of a bar magnet, it is