V_{tpd}\) can also be calculated as \(I R\) where \(R\) is the load resistance. Voltage is a measure of energy, and energy is always conserved. So the EMF \(E\) of a cell is equal to the sum of ...

IN a recent paper, 1 Gerlach and Schneiderhan have described some experiments on the electrical resistance of nickel as a function of the temperature and as a function of a longitudinal external ...

Hence, for a metal, resistance increases with increasing temperature. Often the increase in temperature is caused by an increase in current. An example is a filament lamp. As current increases ...

"Oxides are materials with thermal resistance highly sensitive to oxygen concentration, so by inducing a displacement of these ions when an electric field is applied, we modify their thermal prope ...

Superconductivity is a fascinating phenomenon in which certain materials exhibit zero electrical resistance and expel magnetic fields below a characteristic temperature, known as the critical ...

I AM indebted to Mr. Herbert Tomlinson for drawing my attention to his most interesting comparisons between the behaviour of carbon and of metals in respect of change of electric resistance under ...