The action of the thermo-pile, like that of a voltaiccell, can be reversed.
2
On having been verified with a standard voltaiccell the apparatus becomes itself a standard, especially for small electromotive forces.
3
The ordinary voltaiccell is made by bringing together certain chemicals, whose reaction maintains the electric currents taken from the cell.
4
The electromotive force and current of a thermo-electric couple is very much smaller than that given by an ordinary voltaiccell.
5
He thought that with a single voltaiccell he had obtained the spark before the metals touched, but he subsequently discovered his error.
6
The current version requires 13 microwatts of power, which could potentially be provided by a voltaiccell-developedby Nadeau-thatruns on acidic stomach juices.
7
China is the world's biggest builder of solar photo- voltaiccells and the tariffs will damage Asian companies the most.
8
From this series it is easy to see why zinc and copper, and also zinc and carbon, are often chosen as elements of voltaiccells.
9
9 represents a single voltaiccell containing the usual plates of zinc and copper dipping into acid to generate a current in the old-fashioned way.