1.

The angle of dip at a place is 40.6o 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 [MP PMT 1993]

A. \[7\times {{10}^{-5}}tesla\]   
B. \[6\times {{10}^{-5}}tesla\]
C.    \[\frac{m}{6\pi \eta rv}\]   
D. \[9.2\times {{10}^{-5}}tesla\]
Answer» E.


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