What are the factors on which resistivity of a material depends ?
What are the factors on which resistivity of a material depends ?
It depends only upon the nature of the conductor.
Similar Questions
What is meant by "electrical resistance" of a conductor ? State how resistance of a conductor is affected when $(i)$ a low current passes through it for a short duration; $(ii)$ a heavy current passes through it for about $30$ seconds.
What is meant by "electrical resistance" of a conductor ? State how resistance of a conductor is affected when $(i)$ a low current passes through it for a short duration; $(ii)$ a heavy current passes through it for about $30$ seconds.
Find the equivalent resistance of the following circuit
Find the equivalent resistance of the following circuit
State $Ohm's$ law. Calculate the resistance of a conductor, if the current flowing through it is $0.2 \,A$ when the applied potential difference is $0.8\, V$.
State $Ohm's$ law. Calculate the resistance of a conductor, if the current flowing through it is $0.2 \,A$ when the applied potential difference is $0.8\, V$.
A metal has a very large number of free electrons and a non$-$metal very less number of free electrons.
A metal has a very large number of free electrons and a non$-$metal very less number of free electrons.
Two conductors, one having resistance $R$ and another $2 R$ are connected in turn across a $dc$ source. If the rate of heat produced in the two conductors is $Q_{1}$ and $Q_{2}$ respectively, what is the value of $Q_{1} / Q_{2}$ ?
Two conductors, one having resistance $R$ and another $2 R$ are connected in turn across a $dc$ source. If the rate of heat produced in the two conductors is $Q_{1}$ and $Q_{2}$ respectively, what is the value of $Q_{1} / Q_{2}$ ?