In a region of free space the electric field at some instant of time is E⇀=80i∧+32j∧-64k∧V/m and the magnetic field is B⇀=0.2i∧+0.08j∧-0.29k∧μT. The pointing vector for these fields is

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-11.52i∧+28.8j∧

-28.8i∧+11.52j∧

28.8i∧-11.52j∧

11.52i∧-28.8j∧

answer is D.

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Detailed Solution

The pointing vector S⇀=1μ0E⇀×B⇀=14π×10-7i∧j∧k∧8032-640.20.080.29=11.52i∧-28.8j∧

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