Question

14. The value of horizontal component of earth's
magnetic field at a plane is 0.35 x 10-41. If the angle
of dip is 60°, the value of vertical component of
earth's magnetic field is about
(ACC 2016)
(a) 0.10 x 10-4 T
(b10.60 x 104 T
(c) 0.40 x 104 T
(d) 0.20 x 10-4 T​

Answer 1

Answer:

Here, δ=60∘,H=0⋅4×10−4T,

From H=Rcosδ,R=Hcosδ=0⋅4×10−4cos60∘

=0⋅8×10−4T

V=Rsinδ=0⋅8×10−4sin60∘

=0⋅8×10−4×3–√2=0⋅69×10−4T

Explanation: