When you purchase a water pipe in a hardware store,water is not included.When you purchase copper wire,electrons
A)must be supplied by you,just as water in a water pipe.
B)already exist in the wire.
C)may fall out,which is why wires are insulated.
D)none of the above

Question

Quizplus · Accepted Answer

Electrons already exist within the wire due to the properties of the metal. Therefore, they do not need to be supplied separately by the purchaser.

When You Purchase a Water Pipe in a Hardware Store,water