A copper rod of length 0.94 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k =93 N/m. A magnetic field with a strength of 0.32 T is oriented perpendicular to the surface of the table. (a) What must be the direction of the current in the copper rod that causes the springs to stretch? (b) If the current is 10 A, by how much does each spring stretch? HHAH Table (top view) -Fixed wires (out of paper) Copper rod

A copper rod of length 0.94 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k =93 N/m. A magnetic field with a strength of 0.32 T is oriented perpendicular to the surface of the table. (a) What must be the direction of the current in the copper rod that causes the springs to stretch? (b) If the current is 10 A, by how much does each spring stretch? HHAH Table (top view) -Fixed wires (out of paper) Copper rod

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Magnetic Forces And Magnetic Fields

Section: Chapter Questions

Problem 14OQ

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