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

Electronic and ionic
Electronic, ionic and permanent
Electronic only

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Materials and Components
Which inductor is used at high frequencies?

Cast iron cored
Sheet steel cored
Iron alloy cored
Ceramic cored

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Materials and Components
Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called

Debye temperature
Neel temperature
Curie temperature
Transition temperature

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

8
14
4
12

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Materials and Components
The merger of hole and free electron is called

Free electrons
Thermal energy
Covalent bonding
Recombination

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