A steady-state current flows through the Nichrome wire in the circuit shown in Figure 19.75.
Before attempting to answer these questions, draw a copy of this diagram. All of the locations indicated by letters are inside
the wire.
(a) On your diagram, show the electric field at the locations indicated, paying attention to relative magnitude.
(b) Carefully draw pluses and minuses on your diagram to show the approximate surface charge distribution that
produces the electric field you drew. Make your drawing show clearly the differences between regions of high
surfacecharge density and regions of low surface-charge density.
Use your diagram to determine which of the following statements about this circuit are true.
(1) There is some excess negative charge on the surface of the wire near location B.
(2) Inside the metal wire the magnitude of the electric field is zero.
(3) The magnitude of the electric field is the same at locations G and C.
(4) The electric field points to the left at location G.
(5) There is no excess charge on the surface of the wire.
(6) There is excess charge on the surface of the wire near the batteries but nowhere else.
(7) The magnitude of the electric field inside the wire is larger at location G than at location C.
(8) The electric field at location D points to the left.
(9) Because the current is not changing, the circuit is in static equilibrium.