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Materials and Components

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

9
11
2
29

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Materials and Components
On the basis of the type of chemical bonds, solids may be classified into

Ionic crystal, valence crystals and metals
Ionic and valence crystals
Ionic crystals
Ionic crystals, valence crystals, metal and vander wall crystals

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Materials and Components
Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles.

True
False

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Materials and Components
Many compounds also exhibit semiconducting properties.

True
False

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Materials and Components
The phenomenon of dielectric hysteresis occurs with

AC
Both AC and DC
DC
None of these

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Materials and Components
Which inductor is used at high frequencies?

Iron alloy cored
Cast iron cored
Sheet steel cored
Ceramic cored

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