If the z-component of the magnetic field of an electromagnetic wave traveling in the +x direction through vacuum obeys the equation Bz(x, t) = (1.25 ?T) cos[(3800 m-1)x - (1.14 × 10-12 rad/s)t],
what is the largest that the y component of the electric field can be?
(c = 3.0 × 108 m/s)
A) 375 N/C
B) 4.17 × 10-15 N/C
C) 3.75 × 108 N/C
D) 4.17 × 10-9 N/C
E) 1.25 × 106 N/C
Answer: A
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