âWhere long-term costs are considered, roundabouts eliminate hardware, maintenance and electrical costs associated with traffic signals, which can cost between $5,000 and $10,000 per year.âEngineers also consider how the improvement affects the capacity of the intersection, and how the improvement affects traffic flow.Where long-term costs are considered, roundabouts eliminate hardware, maintenance and electrical costs associated with traffic signals, which can cost between $5,000 and $10,000 per year.
Show transcribed image text An electron is traveling through a region between two metal plates in which there is a constant electric field of magnitude E along the y direction as sketched in the figure below. This region has a total length L, and the electron has an initial speed v0 along the x direction. (Use the following as necessary: m and e for the mass and charge of the electron respectively, E, L, v0.
Rating Newest Oldest. Best Answer: Electric current is defined as the rate of transfer of charge. The direction of conventional current is always given by the direction in which positive charge moves. This can be achieved either by moving positive charges in this direction, or by moving negative charges (ie.electrons) in the opposite direction.If you are moving electrons then the side which they are going to becomes negative and the side they are leaving becomes positive.Since direction of current is towards the positive, the current is in the opposite direction to flow of electrons.Source(s): John C Â· 7 years ago.ating Newest Oldest. Best Answer: Electric current is defined as the rate of transfer of charge. The direction of conventional current is always given by the direction in which positive charge moves. This can be achieved either by moving positive charges in this direction, or by moving negative charges (ie.