At a given instant, a 1.8-A current flows in the wires connected to a parallel plate capacitor. What is the rate at which the electric field is changing between the plates if the square plates are 1.60 cm on a side?
The magnetic field in a traveling EM wave has an rms strength of 2.85 nT. How long does it take to deliver 235 J of energy to 1.00 cm^2 of a wall that it hits perpendicularly?
At a given instant in time, a traveling EM wave is noted to have its maximum magnetic field pointing west and its maximum electric field pointing south. In which direction is the wave traveling? If the rate of energy flow is 560 W/m^2 what are the maximum values for the two fields?