Metal.

(p) Specific Resistance Cubic Centimeter Microhms.

Resistance per

Relative Resistance.

Foot, 1/1000 Inch Diameter.

Meter, 1 Millimeter Diameter.

Ohms.

Ohms.

Silver, annealed

1.5006

9.0283

0.01911

1.000

" hard-drawn

1.6298

9.8028

0.02074

1.086

Copper, annealed

1.61966

10.2063

0.02160

1.130

" hard-drawn

1.73054

10.4117

0.02204

1.153

Gold, annealed

2.0531

12.3522

0.02614

1.369

" hard-drawn.

2.0896

12.5692

0.0266

1.393

Aluminum, annealed

2.9055

17.4825

0.037

1.935

Zinc, pressed

5.6127

33.7614

0.071

3.741

Platinum, annealed

9.0352

54.3517

0.115

6.022

Iron, annealed

9.6933

58.308

0.123

6.460

Lead, pressed.

19.584

117.79

0.249

13.05

German silver, hard or annealed

20.886

125.62

0.266

13.92

Platinum, silver alloy (2 parts silver and 1 part platinum), hard or annealed.............

24.329

146.36

0.310

16.21

Manganese steel

75

447.50

0.95

49.7

Mercury

96

570.84

1.208

62.73