In studies of the possibility of migrating birds using the Earth's magnetic field for navigation, birds have
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Question:
In studies of the possibility of migrating birds using the Earth's magnetic field for navigation, birds have been coils as "caps" and "collars" as shown in the figure below.
(a) If the identical coils have radii of 1.15 cm and are 2.25 cm apart, with 42 turns of wire apiece, what current should they both carry to produce a magnetic field of 4.10 x 10 -5 T halfway between them?
(b) If the resistance of each coil is 225Ω what voltage should the battery supplying each coil have?
(c) What power is delivered to each coil?
Related Book For
Materials and process in manufacturing
ISBN: 978-0471656531
9th edition
Authors: E. Paul DeGarmo, J T. Black, Ronald A. Kohser
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