One joule of work is needed to move one coulomb of charge from one point to another with no change in velocity. which of the following is true between the two points?

a.) the resistance is one ohm.
b.) the current is one ampere.
c.) the potential difference is one volt.
d.) the electric field strength is one newton per coulomb.
e.) the electric field strength is one joule per electron.

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Which accurately compares concave and convex lenses?

Point charges q1=+2.00μc and q2=−2.00μc are placed at adjacent corners of a square for which the length of each side is 1.50 cm . point a is at the center of the square, and point b is at the empty corner closest to q2. take the electric potential to be zero at a distance far from both charges. part a what is the electric potential at point a due to q1 and q2? express your answer with the appropriate units.