The figure here gives the electric field of an EM wave at a certain point and at certain instant. The wave is transporting energy in the negative Z direction. What is the direction of the magnetic field of the wave at that point and instant?

Question

The figure here gives the electric field of an EM wave at a certain point and at certain instant. The wave is transporting energy in the negative Z direction. What is the direction of the magnetic field of the wave at that point and instant? (A) Towards + X direction (B) Towards - X direction (C) Towards + Z direction (D) Towards - Z direction

Tardigrade Admin · Accepted Answer

The direction of EM wave is given by the direction of vecE × vecB

Q. The figure here gives the electric field of an $EM$ wave at a certain point and at certain instant. The wave is transporting energy in the negative $Z$ direction. What is the direction of the magnetic field of the wave at that point and instant?

Towards + X direction

Towards - X direction

Towards + Z direction

Towards - Z direction

The direction of EM wave is given by the direction of $E \times B$

Q. The figure here gives the electric field of an EM wave at a certain point and at certain instant. The wave is transporting energy in the negative Z direction. What is the direction of the magnetic field of the wave at that point and instant?