Tungsten wire is used to make standard resistors because...

When the temperature of a wire is increased from $303 \ K$ to $356 \ K$,the resistance of the wire increases by $10 \%$. The temperature coefficient of resistance of the material of the wire is:

As the temperature of a conductor increases,its resistivity and conductivity change. The ratio of resistivity to conductivity

The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to the difference in the

If the length of a wire is increased by $0.1\%$,what is the percentage increase in its resistance (in $\%$)?

Two solid conductors are made of the same material,have the same length,and have the same resistance. One of them has a circular cross-section of area $A_{1}$ and the other has a square cross-section of area $A_{2}$. The ratio $\frac{A_{1}}{A_{2}}$ is