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Materials and Components

Materials and Components
A leakage capacitor can be represented by a capacitance C and resistance R in parallel C.

False
True

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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
A vacant electronic state moves in the same direction as would a positive charge carrier.

False
True

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Materials and Components
Which inductor is linear?

Sheet steel cored
Air cored
Iron alloy cored
Cast iron cored

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Materials and Components
For making a capacitor it is better to have a dielectric having

Permittivity same as that of air
High permittivity
Permittivity which is neither high nor low
Low permittivity

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

False
True

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