Tag: electrical and magnetic properties of solids
Questions Related to electrical and magnetic properties of solids
Frenkel defect is observed in:
Assertion: The electrical conductivity of a semiconductor increases with increase in temperature.
Reason: With increase in temperature, large number of electrons from the valence band can jump to the conduction band.
The electrical resistivity of a semiconductor:
Which of the following, when doped into ultrapure germanium, will convert it into a p-type semiconductor?
Mercury becomes superconducting at _________.
Superconductivity may be defined as a phenomenon in which metals, alloys and chemical compounds become perfect conductors with zero resistivity at temperatures approaching __________.
For most metals, the transition temperature lies between _________.
Which of the following represent(s) true statement(s)?
The temperature at which a substance starts behaving as super-conductor is called _________.
superconductors are _________.