Draw a graph showing variation of resistivity with temperature for nichrome. Which property of nichrome is used to make standard resistance coils?

Why are alloys used for making standard resistance coils?

Why are alloys used for making standard resistance coils?

Show on a graph, the variation of resistivity with temperature for a typical semiconductor.

Draw a graph showing the variation of decay rate with number of active nuclei.

Define resistivity of a conductor. Plot a graph showing the variation of resistivity with temperature for a metallic conductor. How does one explain such a behaviour, using the mathematical expression of the resistivity of a material

Why are constantan and manganin used for making standard resistances ?

Figure (a) and figure (b) both are showing the variation of resistivity (p) with temperature (T) for some materials. Identify the types of these materials.

Show variation of resistivity of copper as a function of temperature in a graph.

Draw a graph to show the variation in density of water with temperature in the temperature range from 0^(@)C to 10^(@)C .

A constant potential difference is applied across a resistance. Consider variation of resistance with temperature. Which graph represents best the variation of power produced in resistance versus resistance?