magnetism

Question: The correct relation is (Where ${B_H} = $Horizontal component of earth's magnetic field; ${B_V}$= Vertical component of earth's magnetic field and B = Total intensity of earth's magnetic field)

1) $B = \frac{{{B_V}}}{{{B_H}}}$

2) $B = {B_V} \times {B_H}$

3) $|B| = \sqrt {B_H^2 + B_V^2} $

4) $B = {B_H} + {B_V}$

Solution:

Explanation: No Explanation

Earth Magnetism

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