Fig. 238. MAYER'S FLOATING MAGNETS.
Mercury.
A metal; one of the elements; symbol, Hg; atomic weight, 200 ;
equivalent, 200 or 100; valency, 1 and 2.
It is a conductor of electricity.
The following data are 0º C. (32º F.)
Relative Resistance, 62.73
Specific Resistance, 94.32 microhms.
Resistance of a wire,
(a) 1 foot long, weighing 1 grain, 18.51 ohms.
(b) 1 foot long, 1/1000 inch thick, 572.3 "
(c) 1 meter long, weighing 1 gram, 12.91 "
(d) I meter long, 1 millimeter thick 1.211 "
Resistance of a 1 inch cube, 37.15 microhms.
Percentage increase of resistance per degree C. 1.8° F.
at about 20° C. (68° F.), .72 per cent.
Electro-chemical equivalent (Hydrogen = .0105), 2.10 mgs.
1.05 "