Electric Conductivity and Electric Resistivity
Electric Conductivity and Electric Resistivity: Overview
This Topic covers sub-topics such as Resistance, Resistor, Electrical Resistivity, Electrical Conductivity and, Analogy of Electric Current with Water Flow
Important Questions on Electric Conductivity and Electric Resistivity
Explain the analogy of electric current with water flow.
What is the relation between electrical conductivity and electrical resistivity?
On what factors does the resistance of a conductor depend?
_____is the metal which has the lowest resistivity.
Factors on which the resistance of a conductor depends ____________.
What would be the resistance of a conductor if the current flowing through it is when the potential difference across it is ?
If there is a wire of resistance R and we stretch it such that it becomes 2 times longer, then the new resistance of the wire will be______.
The resistivity of a metallic wire depends on the _____.(Nature of material/ size of the material )
A conductor having very high resistance is________.
The electrical resistivity of a given metallic wire depends upon _________.
The resistance of the conductor is R. If its length is doubled, then its new resistance will be __________.
Resistivity of a metallic wire depends on _________.
What is ohm resistance?
What is the unit of specific resistance or resistivity?
Resistivity depends on which of the following?
Electrical resistivity of a given metallic wire depends upon:
Aluminium offers more opposition to electric current when compared to wood.
