Somebody please help me with these. My professor doesn‘t explain how to do crap. Please show steps. I want to know how to to do these.A current of 1600 A exists in a rectangular 0.4-by-16cm bus bar. The current is due to free electrons moving through the wire at an average velocity of v meters/second. If the concentration of free electrons is 10^29 electrons per cubic meter and if they ae uniformly dispersed throughout the wire, then what is the average velocity of an electron?How much energy is imparted to an electron as it flows through a 6 V battery from the positive to the negative terminal? Express answer in attojoules.Thank you all!
The bus bar is 0.4 x 16 cm in cross-section? drift velocity Vd Vd I / nqA I is current n is the number of charge carriers per m? for copper, 8.5e28 electrons per m?. A is the cross sectional area on m? q is the charge of the charge carriers (electrons) q –1.602e–19 Coulomb (charge on an electron) A 0.004 x 0.16 m? q 1.602e–19 I 1600 n 10^29 plug in the numbers
