Question

3 of Review Cone Part B What is the necessary current? Express your answer to two significant figures and include the appropriate units. Bats are capable of navigating using the earth's foldha plus for an animal that may ily great distances from its roost at night. It, while sleeping during the day, bats are exposed to a field of a similar magnitude but different direction than the earth's field, they are more likely to lose their way during their next lengthy night flight. Suppose you are a researcher doing such an experiment in a location where the earth's field is 50 T at a 60° angle below horizontal. You make a 90 cm diameter, 100-turn coil around a roosting box, the sleeping bats are at the center of the coil. You wish to pass a current through the coil to produce a field that, when combined with the earth's field, creates a net field with the same strength and dip angle (60 below horizontal) as the earth's field but with a horizontal component that points south rather than north НА ? I E Value Units Submit Request Answer

Answer 1

1 Given:- B = 500 T = 50x10-6 TANE TOU ,d = gocm=0.9m Magnetic field in a current carrying coil:- B: MONI MONI 27 I = Bd MON (52x106) (0.9) (4*X10-7)(100) I = 0.3582 A