Question

1. diamagnetic is a term used to describe which of the following?

easily magnetized

an alloy that can be magnetized electrically

ceramic magnets

material that cannot be magnetized

Explanation:

Define diamagnetism

Using the Electromagnetism knowledge point

$$ \chi_m < 0 $$

Diamagnetic materials create an induced magnetic field in a direction opposite to an externally applied magnetic field, resulting in a weak repulsive force.

Analyze the options

• "Easily magnetized" describes ferromagnetic materials (e.g., iron).
• "An alloy that can be magnetized electrically" refers to electromagnets or soft magnetic alloys.
• "Ceramic magnets" are permanent magnets made of ferrites.
• "Material that cannot be magnetized" is the closest standard description among the choices, as diamagnetic materials do not retain any permanent magnetization and are generally considered non-magnetic in practical applications.

Answer:

• Easily magnetized
• An alloy that can be magnetized electrically
• Ceramic magnets
• Material that cannot be magnetized (Correct answer)