Question

in the magnetic meridian of a place, the horizontal component of the earth`s magnetic field is $0.26$ and the dip angle is $60$ and the dip angle is $60$
What is the magnetic field of the earth at this location?

Answer 1

H=0.26GH=0.26G

δ=60∘δ=60∘

H=RcosδH=Rcos⁡δ

=> R=HcosδR=Hcos⁡δ

∴R=0.2612∴R=0.2612

cos60∘=12cos⁡60∘=12

∴R=0.2612∴R=0.2612

=0.52G=0.52G

Answer : 0.52G