A copper wire hangs vertically from a tree limb down to the ground, 3.0 meters below. A child connects the ends of the wire to a power supply to send current downward through it. The Earth's magnetic field at that location points North, but at a 22-degree angle below the horizontal. The magnitude of the Earth's magnetic field is 1.50 X 104 Tesla. (a) Calculate the amount of current needed so that the magnetic field applies a force to the wire of 0.050 Newtons. (b) What is the direction of the force? (up, down, east, west, north, south?)

A copper wire hangs vertically from a tree limb down to the ground, 3.0 meters below. A child connects the ends of the wire to a power supply to send current downward through it. The Earth's magnetic field at that location points North, but at a 22-degree angle below the horizontal. The magnitude of the Earth's magnetic field is 1.50 X 104 Tesla. (a) Calculate the amount of current needed so that the magnetic field applies a force to the wire of 0.050 Newtons. (b) What is the direction of the force? (up, down, east, west, north, south?)

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 22P

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