Question

The value of the horizontal component of the earth's magnetic field and angle of dip are and 30° respectively at some place. The total intensity of earth's magnetic field at that place will be

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

Answer 2

Horizontal component $B _ { H } = B \cos \phi$

Total intensity of earth magnetic field

$B = \frac { B _ { H } } { \cos \phi }$