The magnetic field 40.0 cm away from a long, straight wire carrying current 2.00 A is 1.00 µT. (a) At what dis- tance is it 0.100 µT? (b) What If? At one instant, the two conductors in a long household extension cord carry equal 2.00-A currents in opposite directions. The two wires are 3.00 mm apart. Find the magnetic field 40.0 cm away from the middle of the straight cord, in the plane of the two wires. (c) At what distance is it one-tenth as large? (d) The center wire in a coaxial cable carries current 2.00 A in one direction, and the heath around it carries current 2.00 A in the opposite lirection. What magnetic field does the cable create at oints outside the cable?

The magnetic field 40.0 cm away from a long, straight wire carrying current 2.00 A is 1.00 µT. (a) At what dis- tance is it 0.100 µT? (b) What If? At one instant, the two conductors in a long household extension cord carry equal 2.00-A currents in opposite directions. The two wires are 3.00 mm apart. Find the magnetic field 40.0 cm away from the middle of the straight cord, in the plane of the two wires. (c) At what distance is it one-tenth as large? (d) The center wire in a coaxial cable carries current 2.00 A in one direction, and the heath around it carries current 2.00 A in the opposite lirection. What magnetic field does the cable create at oints outside the cable?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 83A

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