an iron wire with cross-section 3,7 * 10-6 m2 carries current 168 A. Find the drift velocity Vd , in units of millimetres per second , by assuming the existence of two carries per iron atom. Hint : first , calculate the number density n of the charge carries

During the 4.8 min a 7.0 A current is set up in a wire, how many (a) coulombs and (b) electrons pass through any cross section of the wire's width?

A current of 2.41 A flows through a 1.05 mm diameter copper wire that is connected to a capacitor plate. The current is directed toward the plate. Find the charge transferred to the plate in 1.10 x 10-3 s.

A current of 82.8 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 11.0 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction The magnitude is zero. opposite direction