In a conductor, we examine current flow using (among other things) current density. We look at the amount of current (I) in that conductor, and we consider the cross-sectional area (A) of that...
Current density is the amount of electrical current flowing in a unit of cross sectional area of that conductor. You'd look at the current flowing and the cross sectional area of the conductor and...
Related ads:
Shopping for Earth Sciences deals?
Find Coupons and Promo Codes on Coupons by Answers.com