Youre developing a system to orient an orbiting telescope. The system uses three perpendicular coils, with torques

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You’re developing a system to orient an orbiting telescope. The system uses three perpendicular coils, with torques developed in Earth’s magnetic field when current passes through them. Weight limitations restrict you to a length l of wire for each coil. A colleague argues you’ll get the greatest dipole moment and therefore the most torque with a multi-turn coil. You say a 1-turn coil is best. Who’s right?

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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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