Drift speed refers to the average distance traveled by a charge carrier per unit of time. Like the speed of any object, the drift speed of an electron moving through a wire is the distance to time ratio. A typical drift speed might be 1 meter per hour. That is slow! 1. If the average drift speed of an electron is very slow, how can there by a current on the order of 1 or 2 ampere in

Explanation:

there are many, many charge carriers moving directly throughout the entire length of the circuit. Current is that the rate at which charge crosses some extent on a circuit. A high current is that the results of several coulombs of charge crossover a cross section of a wire on a circuit. If the charge carriers are densely packed into the wire, then there doesn't need to be a high speed to possess a high current. That is, the charge carriers don't need to travel an extended distance during a second, there just has got to be tons of them passing through the cross section.

gas and liquid

because growing process had stoped after 4-5 year