At the equator, the earth’s field is essentially horizontal; near the north pole, it is nearly vertical. In between, the
Posted: Sun Nov 13, 2022 12:06 pm
At the equator, the earth’s field is essentially horizontal;near the north pole, it is nearly vertical. In between, the anglevaries. As you move farther north, the dip angle, the angle of theearth’s field below horizontal, steadily increases. Green turtlesseem to use this dip angle to determine their latitude. Suppose youare a researcher wanting to test this idea. You have gathered greenturtle hatchlings from a beach where the magnetic field strength is50 μT and the dip angle is 56∘. You then put the turtles in a 1.3 mdiameter circular tank and monitor the direction in which they swimas you vary the magnetic field in the tank. You change the field bypassing a current through a 250-turn horizontal coil wrapped aroundthe tank. This creates a field that adds to that of the earth.
Part B: What current should you pass through the coil, toproduce a net field in the center of the tank that has a dip angleof 62∘?
Express your answer to two significant figures and include theappropriate units.
Part B: What current should you pass through the coil, toproduce a net field in the center of the tank that has a dip angleof 62∘?
Express your answer to two significant figures and include theappropriate units.