The conductivity of a metal is determined by the electronic concentration and the mobility of the free electrons.
Last Answer : The conductivity of an extrinsic semiconductor with temperature remains constant. ...
Last Answer : Superconductivity can be destroyed by application of magnetic field. ...
The conductivity of a conductor can be increased by? Last Answer : The conductivity of a conductor can be increased by decreasing its temperature. ...
Last Answer :  In a crystal, an atom vibrates at a frequency determined by the stiffness of the bonds it makes with neighbors. ...
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre. (A) Electrical resistance (B) Thermal conductivity (C) Strength (D) None of these Last Answer : (A) Electrical resistance...
The type of liquor circulation system to be ' employed in evaporators (viz. natural or forced circulation) is determined mainly by the __________ of the liquid. (A) Viscosity (B) Density (C) Thermal conductivity (D) Corrosive nature Last Answer : (A) Viscosity ...
Last Answer : Superconducting metal in superconducting state has a relative permeability of zero. ...
Last Answer : The resistivity of a metal is a function of temperature because the amplitude of vibration of the atoms varies with temperature. ...
By increasing impurity content in the metal alloy the residual resistivity always Last Answer : By increasing impurity content in the metal alloy the residual resistivity always increases. ...
 The metal having the lowest temperature coefficient of resistance is Last Answer : The metal having the lowest temperature coefficient of resistance is gold. ...
708k questions
669k answers
287 comments
10.7k users
