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Chapter 31: Q. 12 (page 901)
What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is
The magnetic field amplitude of an electromagnetic wave is.
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A proton is fired with a speed of through the parallel-plate capacitor shown in FIGURE . The capacitor's electric field is role="math" localid="1648984502437" .
a. What magnetic field , both strength and direction, must be applied to allow the proton to pass through the capacitor with no change in speed or direction?
b. Find the electric and magnetic fields in the proton's reference frame.
c. How does an experimenter in the proton's frame explain that the proton experiences no force as the charged plates fly by?
A LASIK vision-correction system uses a laser that emits-long pulses of light, each withof energy. The laser beam is focused to a -diameter circle on the cornea. What is the electric field amplitude of the light wave at the cornea
Show that the quantity has units of current.
Unpolarized light of intensity is incident on a stack of polarizing filters, each with its axis rotated with respect to the previous filter. What light intensity emerges from the last filter?
shows the voltage across a capacitor. Draw a graph showing the displacement current through the capacitor as a function of time.
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