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Pulverised fuel fired furnaces employ __________ fuel firing.
Trommels employ __________ for screening of materials.
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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
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The impurity atoms is semiconductors
With rise in temperature the resistance of semiconductors
The impurity atoms with which silicon should be doped to make p-type semiconductors are
With increase in temperature, the electrical conductivity of semiconductors