Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 303
Fig. 238. Fig. 239. Connect the upper ends of the strips by a copper wire, ortouch them together (Fig 239). 1. What is now observed at the surface of the copper? 2. Is there any change at the surface of the zinc ? 3. Is the zinc being acted upon chemically ? To answer thisquestion, weigh the strip,…
Physics
Internet Archive · Western University Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-301-123.webp)
