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Discussion :: Electromagnetic Field Thoery

  1. The cross product of the vectors 3i + 4j “ 5k and “i + j “ 2k is,
  2. A.
    3i "“ 11j + 7k
    B.
    -3i + 11j + 7k
    C.
    -3i "“ 11j "“ 7k
    D.
    -3i + 11j "“ 7k

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    Answer : Option B

    Explanation :

    Cross product of two vectors is, A X B = (a2*b3 “ b2*a3)i “ (a1*b3 “ b1*a3)j + (a1*b2 “ b1*a2)k. Using the formula, the answer can be calculated.


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