Ceramic magnets are_______?
Correct answer: B. Insulators
- A. Semiconductors
- B. Insulators
- C. Conductors
- D. None of these
Explanation
Ceramic magnets are made from ferrite materials, which have high electrical resistance and therefore behave as insulators. The likely mistake is choosing semiconductors because ferrites have unusual magnetic properties, but magnetic behaviour does not make them electrical conductors.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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