Question

Horizontal and Vertical
components of earth is
magnetic field at a place are
0.22 tesla and 0.38 tesla
respectively. Find the
resultant intensity of earth's
magnetic field
0.3
O 0.4
O 0.44
O 0.47​

Answer 1

Given : Horizontal and vertical components of earth is magnetic field at a place are 0.22T and 0.38T respectively.

To find : The resultant intensity of earth's magnetic field.

solution : horizontal component of earth's magnetic field, $B_H$ = 0.22 T

vertical component of earth's magnetic field, $B_V$ = 0.38 T

The resultant of earth's magnetic field, B = $\sqrt{B_H^2+B_V^2}$

= $\sqrt{(0.22)^2+(0.38)^2}$

= $\sqrt{.0484+0.1444}$

= $\sqrt{0.1928}$

≈ 0.44 T

Therefore resultant intensity of earth's magnetic field is 0.44 T.

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