File:Life in Motion Fig 32.png
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:13, 8 December 2015 | 1,306 × 432 (39 KB) | Keith Edkins | {{Information |Description={{en|1=Fig. 32.—Steel spring for making and breaking the primary circuit of induction coil. The point on the left is caused to dip into mercury, and thus make contact. See Fig. 29.}} |So... |
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