This preview shows page 1. Sign up to view the full content.
Unformatted text preview: acement) through the soupcan is not equal to the
"current" (conduction + displacement) through the shaded surface.
B) The conduction current through the soupcan is equal to the conduction current
through the shaded surface.
C) There must be conduction current (8/9)I flowing radially outward in the capacitor
plate through the soupcan sides
D) There must be conduction current of (3/4)I flowing radially outward in the capacitor
plate through the soupcan sides
E) There must be conduction current equal to (1/9)I flowing to the right through the
shaded surface. 17. In a simple, purely inductive AC circuit a sinusoidally oscillating emf of angular
frequency ω forces AC current to flow through a solenoid of inductance L. This AC
current generates an oscillating magnetic field along the axis of the solenoid. The induced
electric field that circulates around the axis inside the volume of the solenoid is:
A) sinusoidal in time and its amplitude does not depend on ω
B) sinusoidal in time and its amplitude is inversely proportional to ω
C) constant
D) 0, since the inductor/solenoid voltage is 90° out of phase with the current
E) sinusoidal in time and its amplitude is proportional to ω
The emf of the generator must
always equal the emf of the inductor
because of the loop law. But... the
emf of the inductor is the integral of
the electric field in the windings of
the solenoid. That means that E
depe...
View
Full
Document
This document was uploaded on 03/11/2014 for the course PHYSICS 240 at University of Michigan.
 Fall '08
 DaveWinn
 Physics

Click to edit the document details