1.  How is the direction of the magnetic field thataccompanies a changing electric field related to the direction ofthe changing electric field?
2. What is the main difference between the effects of electricfields on charged particles and the effects of magnetic fields oncharged particles?
3. What is the relationship between the magntidue of theelectric and magnetic fields for an electromagnetic wave pulsetraveling in vacuum? And how is the direction of B that accompaniesa changing E related to the direction of the changing E field?
