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 ...
The quantized values of the Hall conductance are defined by fundamental constants ... This has led to the adoption of the Quantum Hall Effect as a standard for electrical resistance calibration.