The angle of dip at a place is $40.6°$ and the intensity of the vertical component of the earth's magnetic field $V = 6 \times {10^{ - 5}}$ $Tesla$. The total intensity of the earth's magnetic field $ (I) $ at this place is

  • A

    $7 \times {10^{ - 5}}\,tesla$

  • B

    $6 \times {10^{ - 5}}\,tesla$

  • C

    $5 \times {10^{ - 5}}\,tesla$

  • D

    $9.2 \times {10^{ - 5}}\,tesla$

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