Physics · Electromagnetic Waves
The electric field in a plane electromagnetic wave is given by Ez = 60 cos(5x + 1.5 × 109 t) V/m. Then the expression for the corresponding magnetic field is (here subscripts denote the direction of the field):
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Bz = 60 sin(5x + 1.5 × 109 t) T
- 2Bz = 60 cos(5x + 1.5 × 109 t) T
- 3Bx = 2 × 10−7 cos(5x + 1.5 × 109 t) T
- 4By = 2 × 10−7 cos(5x + 1.5 × 109 t) T✓
Correct answer
By = 2 × 10−7 cos(5x + 1.5 × 109 t) T
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