test 3 chap 32

In an electromagnetic wave, the electric and magnetic fields are oriented such that they are

perpendicular to one another and perpendicular to the direction of wave propagation.

An electromagnetic wave propagates along the +y direction as shown in the figure. If the electric field at the origin is along the +z direction, what is the direction of the magnetic field?

+x

If an electromagnetic wave has components Ey=E0sin(kx−ωt) and Bz=B0sin(kx−ωt), in what direction is it traveling?

+x

The energy per unit volume in an electromagnetic wave is

equally divided between the electric and magnetic fields

An electromagnetic wave is propagating towards the west. At a certain moment the direction of the magnetic field vector associated with this wave points vertically up. The direction of the electric field vector of this wave is

horizontal and pointing south.

Which one of the following lists is a correct representation of electromagnetic waves from longer wavelength to shorter wavelength?

radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays

A capacitor is hooked up to a resistor and an AC voltage source as shown in the figure. The output of the source is given by V(t)=V0sinωt. The plates of the capacitor are disks of radius R. Point P is directly between the two plates, equidistant from them and a distance R/2 from the center axis. At point P

there is a time-varying magnetic field.