Laboratory exercises in physics for secondary schools (1906)
Twiss, George Ransom, b. 1863 · Chicago, Scott, Foresman and company · leaf 249
carded. 22. Ex.41. Scratch Brushesand other platers materialsmay be bought from dealer- inplaters supplies. Fl°; ^-Commutator. The _ wires leading from the galvanome- Commutator. In many ex- ter uIV in8erted at pii^ (;<; all(1 periments it is accessary thai those leading from the current cir-the… … 228 APPENDICES The connections are made as shown, by wires dipping intoholes containing mercury. To reverse the current throughthe galvanometer, lift the top, turn it through a right angle,and replace it. To break the current, leave off the cover. /^~X ^~7\ /^~7\ When measuring current strength…
Physics
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