AP EAMCET · PHYSICS · Magnetic Properties of Matter
A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip pointing down at with the horizontal. The horizontal component of the earth's magnetic field at the place is . Then the magnitude of the earth's magnetic field at the location is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Horizontal component magnetic field at a point where dip angle is δ is given by, BH=Bcosδ⇒B=BHcosδ=0.3×23=35 G
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