Question

A vector needs three quantities for its specification. Which of the following independent quantities is not used to specify the earth’s magnetic field?

• A. Magnetic declination ( $\theta$ ).
• B. Magnetic dip ($\delta$).
• C. Horizontal component of earths field (BH).
• D. Vertical component of earth’s field (Bv).

Answer 1

Answer: (D)

Vertical component of earth’s field (Bv).

Answer 2

: Vertical component of earth’s field $\left( B _ { v } \right)$ is not used to specify the earth’s magnetic field.