Calculate the charge that flows through the cell in a time of $7.5$ minutes.
Calculate the percentage efficiency with which the cell supplies power to wire X.
The volume of wire X contains $3.2 \times 10^{22}$ free (conduction) electrons. For wire X, calculate the number density $n$ of the free electrons.
The volume of wire X contains $3.2 \times 10^{22}$ free (conduction) electrons. For wire X, calculate the average drift speed of the free electrons.
Wire Y matches wire X in cross-sectional area and is made from the same metal. Wire Y is longer than wire X. Wire X in the circuit is now replaced with wire Y. Assume that wire Y has the same temperature as wire X. State and explain whether the average drift speed of the free electrons in wire Y is greater than, the same as, or less than that in wire X.