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Consider an electromagnetic wave that propagates in the +z direction with an electric field strength of 1 v/m pointing in the +y direction. Then the direction and magnitude of the magnetic field pulse that travels along with the electric field is : 3.33 x 10 -9 T in -y direction 3.33 x 10 -9 T in -x direction 3.33 x 10 -9 T in +x direction 9.99 x 10 -7 T in -x direction

Consider an electromagnetic wave that propagates in the +z direction with an electric field strength of 1 v/m pointing in the +y direction. Then the direction and magnitude of the magnetic field pulse that travels along with the electric field is :
  1. 3.33 x 10-9 T in -y direction
  2. 3.33 x 10-9 T in -x direction
  3. 3.33 x 10-9 T in +x direction
  4. 9.99 x 10-7T in -x direction

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1 Answers

ats
103 Points
3 years ago
Magnitude of magnetic field = Magnitude of electric field / c          where c= speed of light = 3 x 108 m/s
                                             = 3.33 x 10-9
 
Direction of propagation of wave is +z and electric field strenght points in +y direction. Now, v = E x B. So the magnetic field B is in -x direction.

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