A pulse of electromagnetic radiation is 1. (0, -3 x 10' T, 0) propagating in the -y direction. You place a detector at location 2. (0, -0.001 T, 0) (0, -5 m, 0) m . 3. (0, 0, -3 x 105 T) At time t = 0, the detector detects an elec- 4. (0, 0, 0.001 T) tric field of magnitude 300,000 V/m in the +r direction. At that instant, what is the 5. (0, 3 x 10' T, 0) magnetic field vector at the location of the detector? 6. (0, 0, -0.001 T) 0 7. (0, 0, 3 x 105 T) 8. (0, 0.001 T, O)