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Materials and Components

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

29
9
2
11

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Materials and Components
A characteristic property of crystal is its periodicity of structure.

False
True

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Materials and Components
Wood is a diamagnetic material.

True
False

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Materials and Components
In solid insulator materials having only one kind of atom, the types of polarization which exist are

Electronic and ionic
Electronic only
Electronic, ionic and permanent

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Materials and Components
When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability.

True
False

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Materials and Components
Which inductor is used at high frequencies?

Iron alloy cored
Sheet steel cored
Cast iron cored
Ceramic cored

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