A square of side L meters lies in the x-y plane in a region where the magnetic field is given by Tesla, where Bo is constant. B=B₁(21+3j+4k) The magnitude of flux passing through the square is : (a) 2B L²Wb. (b) 3B L²Wb. (c) 4B L²Wb. (d) √√29B L²Wb
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