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If the magnetic field of a plane electromagnetic wave is given by (the speed of light = 3 × 10 8 m/s) B = 100 × 10 –6 sin ⎥ ⎦ ⎤ ⎢ ⎣ ⎡ ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − × × π c x t 10 2 2 15 then the maximum electric field associated with it is -

1. 4.5 × 10 4 N/C
2. 4 × 10 4 N/C
3. 6 × 10 4 N/C
4. 3 × 10 4 N/C

Correct answer: 3 × 10 4 N/C

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