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प्रश्न
Pieces of copper and of silicon are initially at room temperature. Both are heated to temperature T. The conductivity of ______.
पर्याय
both increases.
both decreases.
copper increases and silicon decreases.
copper decreases and silicon increases.
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उत्तर
Pieces of copper and of silicon are initially at room temperature. Both are heated to temperature T. The conductivity of copper decreases and silicon increases.
Explanation:
The resistance of copper wire increases with temperature, which causes a drop in conductivity, while the resistance of silicon wire reduces with temperature, which causes an increase in conductivity.
संबंधित प्रश्न
Distinguish between 'intrinsic' and 'extrinsic' semiconductors
In a p-type semiconductos, which of the following statement is true:
In n-type semiconductor majority carriers and minority carriers are respectively ______.
In p-type semiconductor, the dopant is ______.
In p-type semiconductor, ______.
Explain the following term:
Extrinsic semiconductor
Distinguish between n-type and p-type semiconductors.
Why are elemental dopants for Silicon or Germanium usually chosen from group XIII or group XV?
Name the extrinsic semiconductors formed when pure germanium is doped with a trivalent impurity. Draw the energy band diagram of extrinsic semiconductors so formed.
What type of semiconductor is obtained when a crystal of silicon is doped with a trivalent element?
