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At constant temperature, the thermal conductivities of gases __________ with rise in pressure.
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A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place
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When two semiconductors of p and n-type are brought in contact, they form p-n junction which acts like a/an
The conduction of electricity, in semiconductors, takes place due to movement of
Is an element used in semiconductors whose atoms have three valence electrons.
The impurity atoms is semiconductors