Try it on paper first. A hint, the key idea and the worked solution are here when you need them.
At a place, a dip circle and a magnetometer show a horizontal part of T and a vertical part of T in the Earth's field. Find the whole field and the angle of dip. At another place the whole field is T and the dip is . Find the horizontal and vertical parts there.
On the axis of a short magnet , and on the equatorial line half of that. For the Earth, and . In a material, , and .
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The whole field. .
Step 2. The dip. . So .
Step 3. The horizontal part at the second place. .
Step 4. The vertical part at the second place. .
Answer: T and ; then T and T.
Check. The second place has a larger dip, so its horizontal part is smaller and its vertical part is larger. Also .
Log in to join the discussion.
Loading…