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 ...

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 ...

Physicists in Germany have developed a new way of defining the standard unit of electrical resistance. The advantage of the ...

THE electrical resistance of wood increases very rapidly with decrease in moisture content (grams of water present per 100 grams dry weight), so that, if two probes about 2 cm. apart are driven ...