Define resistivity of a material.
Define resistivity of a material.
The resistivity of a material is the resistance of a conductor of this material of unit length and unit cross-sectional area.
Similar Questions
What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammeter reads $5\, A$. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?
What is electrical resistivity? In a series electrical circuit comprising a resistor made up of a metallic wire, the ammeter reads $5\, A$. The reading of the ammeter decreases to half when the length of the wire is doubled. Why?
The resistance of one conducting wire is $10\, \Omega$. If battery of $1.5\, V$ is connected to it, then how much electric current will flow through it?
The resistance of one conducting wire is $10\, \Omega$. If battery of $1.5\, V$ is connected to it, then how much electric current will flow through it?
If $1\, ampere$ electric current passes through a conductor, how many electrons will pass per second?
If $1\, ampere$ electric current passes through a conductor, how many electrons will pass per second?
State the factors on which the heat produced in a current carrying conductor depends. Give one practical application of this effect.
State the factors on which the heat produced in a current carrying conductor depends. Give one practical application of this effect.
State Ohm's law.
State Ohm's law.