CUET · PHYSICS · PYQ PAPER 2023
At a place the angle of dip is \( 30^{\circ} \). If the horizontal component of the earth's magnetic field is \( B_H \), the total magnetic field of the earth will be :
- A \( B_H/2 \)
- B \( 2B_H/\sqrt{3} \)
- C \( B_H\sqrt{2} \)
- D \( B_H\sqrt{3} \)
Answer & Solution
Correct Answer
(B) \( 2B_H/\sqrt{3} \)
Step-by-step Solution
Detailed explanation
\( B_H = B \cos\delta \) \( B = B_H / \cos 30^{\circ} \) \( B = B_H / (\sqrt{3}/2) \) \( B = 2B_H/\sqrt{3} \)
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