The friends spend some time discussing current. Which of Lalasa's statements regarding current is true? "Current comes out of one terminal of the battery and is then used up as it passes through the resistor, leaving current in only one part of the circuit." "Current is defined as the flow of positive charge carriers." "Current comes out of both terminals of the battery, in opposite directions, and then collides in the resistor, which transfers energy to the resistor." "Current coming out of the resistor is less than that going in, because some of the current is used up."

To understand the electric potential and electric field of a point charge in three dimensions consider a positive point charge q, located at the origin of three-dimensional space. throughout this problem, use k in place of 14? ? 0. part adue to symmetry, the electric field of a point charge at the origin must point from the origin.answer in one word.part bfind e(r), the magnitude of the electric field at distance r from the point charge q.express your answer in terms of r, k, and q. part cfind v(r), the electric potential at distance rfrom the point charge q.express your answer in terms of r, k, and q part dwhich of the following is the correct relationship between the magnitude of a radial electric field and its associated electric potential ? more than one answer may be correct for the particular case of a point charge at the origin, but you should choose the correct general relationship. a)e(r)=dv(r)drb)e(r)=v(r)rc)e(r)=? dv(r)drd)e(r)=? v(r)r