Ratio of total intensity of magnetic field at equator to that at the pole's is
Answers
Explanation:
Equator, θ=0
o
,B
H
=B
e
cosθ=5cos0
o
=5
At poles, θ=90
o
,V=B
e
sinθ=5sin90
o
=5
Thus, the total intensity of earth's magnetic field at poles is also 5 units, but in the vertical direction. At equator, value is the same, but the direction is horizontal.
Answer:
1:2 (approx)
Explanation:
Magnetic field magnitude on the equatorial plane of bar magnet(hypothetical in case of Earth) is half that on the axial points. (approximately for Earth). If the magnetic field in the poles would not be stronger than that on equator then why call it Poles? Poles are regions of strong magnetic field. Also auroras are formed in Poles not equator. Also there is data that poles have an approximate field of around 60000nT compared to about 30000nT near equator