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-0.59 V
Ni2+
Cu(s)
Cu(s)
-0.59 V
Use two electrodes of dissimilar metal (eg. nickel and copper). Stick them in the bannana. A small voltage will be developed across the two electrodes, due to the mild acid in the bannana. Most fruits (and seeds) will work this way, citrus fruits are better, due to the strength of the acid.
That depends on the type of battery. There are nickel cadmium, lithium, lead acid,
the nickel metal
It is made of copper and nickel. A 1949 NICKEL is made from copper & nickel.
The nickel metal(apex)
Nickel cannot replace copper in copper II sulfate because nickel is higher in the electromotive series than copper.
nickel and copper are elements that can be magnetized