A horizontal compass is placed 16 cm due south from a straight vertical wire carrying a 50-A current downward. ▾ Part A In what direction does the compass needle point at this location? Assume the horizontal component of the Earth's field at this point is 0.45 x 10 T and the magnetic declination is 0° Express your answer using two significant figures. 0= ΠΫΠΙ ΑΣΦ Submit Provide Feedback Request Answer a C P ? Review | Constants N of W Next >

A horizontal compass is placed 16 cm due south from a straight vertical wire carrying a 50-A current downward. ▾ Part A In what direction does the compass needle point at this location? Assume the horizontal component of the Earth's field at this point is 0.45 x 10 T and the magnetic declination is 0° Express your answer using two significant figures. 0= ΠΫΠΙ ΑΣΦ Submit Provide Feedback Request Answer a C P ? Review | Constants N of W Next >

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Sources Of The Magnetic Field

Section: Chapter Questions

Problem 30.58AP: A circular coil of five turns and a diameter of 30.0 cm is oriented in a vertical plane with its...

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Two long, parallel wires carry currents of 20.0 A and 10.0 A in opposite directions (Fig. OQ22.13). Which of the following statements is true? More than one statement may be correct. (a) In region I, the magnetic field is into the page and is never zero. (b) In region II, the field is into the page and can be zero. (c) In region III, it is possible for the field to be zero. (d) In region I, the magnetic field is out of the page and is never zero. (e) There are no points where the field is zero. Figure OQ22.13 Objective Questions 13 and 14.
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Sodium ions (Na+) move at 0.851 m/s through a blood-stream in the arm of a person standing near a large magnet. The magnetic field has a strength of 0.254 T and makes an angle of 51.0 with the motion of the sodium ions. The arm contains 100 cm3 of blood with a concentration of 3.00 1020 Na+ ions per cubic centimeter. If no other ions were present in the arm, what would be the magnetic force on the arm?
Two long, parallel wires each carry the same current I in the same direction (Fig. OQ22.5). Is the total magnetic field at the point P midway between the wires (a) zero, (b) directed into the page, (c) directed out of the page, (d) directed to the left, or (e) directed to the right? Figure OQ22.5
The magnetic field 40.0 cm away from a long, straight wire carrying current 2.00 A is 1.00 T. (a) At what distance is it 0.100 T? (b) 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 sheath around it carries current 2.00 A in the opposite direction. What magnetic field does the cable create at points outside?
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