A plane electromagnetic wave is moving in free space with velocity c=3×108 m/s and its electric field is given as E=54sin(kz−ωt)j^ V/m, where j^ is the unit vector along y-axis. The magnetic field vector B of the wave is:
Held on 28 Jan 2026 · Verified 6 Jul 2026.
+1.8×10−7sin(kz−ωt)i^ T
1.4×10−7sin(kz−ωt)k^ T
−1.8×10−7sin(kz−ωt)i^ T
1.4×10−7sin(kz−ωt)i^ T
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