Two cylindrical conductors, X and Y, are made of the same material. They have the same length, but the diameter of Y is smaller than that of X. X and Y are joined in series to a cell. Which row compares the number of charge carriers per unit time passing through X with that through Y, and also compares the average drift speed of the charge carriers in X with that in Y?
- Anumber of charge carriers per unit time: Y greater than X; average drift speed of charge carriers: Y greater than X
- Bnumber of charge carriers per unit time: Y same as X; average drift speed of charge carriers: Y same as X
- Cnumber of charge carriers per unit time: Y greater than X; average drift speed of charge carriers: Y same as X
- Dnumber of charge carriers per unit time: Y same as X; average drift speed of charge carriers: Y greater than X