1 This photo shows a modern version of Volta's experiment where zinc and copper rods are inserted into a grapefruit. What function does the grapefruit serve?
a. It interacts chemically with the zinc and with the copper, connecting them and resulting in positive charges produced at one end and negative charges at the other.
b. It serves to disguise a battery immersed in the grapefruit.
c. Early experiments on electricity involved all kinds of materials, including fruit.
d. The sugar found in plants and animals is what causes the electric potential difference.
e. It is the living material that is necessary to produce the effect observed by Galvani.
a
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