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If the Electric Field in a Plane Electromagnetic Wave Is

Question 21

Multiple Choice

If the electric field in a plane electromagnetic wave is along the y axis and its magnitude is given by Em sin (kx + If the electric field in a plane electromagnetic wave is along the y axis and its magnitude is given by E<sub>m</sub><sub> </sub>sin (kx + t) in SI units, then the magnetic field is along the z axis and its magnitude is given by: A) (E<sub>m</sub>/c) cos (kx + t) B) -(E<sub>m</sub>/c) cos (kx + t) C) (E<sub>m</sub>/c) sin (kx + t) D) -(E<sub>m</sub>/c) sin (kx + t) E) E<sub>m </sub>cos (kx + t) t) in SI units, then the magnetic field is along the z axis and its magnitude is given by:


A) (Em/c) cos (kx + 11ef0130_b6d0_5889_bc85_a96f9c22c0b5_TB6585_11t)
B) -(Em/c) cos (kx + 11ef0130_b6d0_5889_bc85_a96f9c22c0b5_TB6585_11t)
C) (Em/c) sin (kx + 11ef0130_b6d0_5889_bc85_a96f9c22c0b5_TB6585_11t)
D) -(Em/c) sin (kx + 11ef0130_b6d0_5889_bc85_a96f9c22c0b5_TB6585_11t)
E) Em cos (kx + 11ef0130_b6d0_5889_bc85_a96f9c22c0b5_TB6585_11t)

Correct Answer:

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