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
With increase in temperature, the electrical conductivity would

Increase in metals as well as in intrinsic semiconductor
Increase in metals but decrease in intrinsic semiconductor
Decrease in metals as well as in intrinsic semiconductor
Decrease in metals but increase in intrinsic semiconductor

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