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Materials and Components

Materials and Components
Many compounds also exhibit semiconducting properties.

False
True

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Materials and Components
Which inductor is linear?

Iron alloy cored
Air cored
Cast iron cored
Sheet steel cored

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Materials and Components
The fact that domains exhibits spontaneous magnetisation is

First hypothesis is of Curie
Curie-Weiss law
Boltzmann’s statistics
Second hypothesis is of Weiss

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Materials and Components
The elements which become superconducting at extremely low temperatures are

Insulators at room temperature
Ferromagnetic at room temperature
Relatively poor conductors at room temperature
Good conductors at room temperature

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Materials and Components
Debye temperature of metals is

About 10 K
About 600 K
About 200 K
About 2 K

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Materials and Components
The number of protons in a silicon atom are

4
12
14
8

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