- A solenoid is an arrangement of many current loops placed together as shown below. The current through each loop is the same and is in the direction shown. Obtain or draw an enlargement of the figure. 1. At each of the labeled points, draw a vector to indicate the direction and magnitude of the magnetic field. Use the principle of superposition to determine your answer. 2. Sketch magnetic field lines on the enlargement. Describe the magnetic field near the center of the solenoid. Cross-sectional side view

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
Chapter23: Faraday’s Law And Inductance
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Problem 6OQ
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C. A solenoid is an arrangement of many current loops placed together as shown below. The
current through each loop is the same and is in the direction shown.
Obtain or draw an enlargement of the figure.
1. At each of the labeled points, draw a vector to indicate the direction and magnitude of the
magnetic field. Use the principle of superposition to determine your answer.
2. Sketch magnetic field lines on the enlargement.
Describe the magnetic field
near the center of the solenoid,
Cross-sectional side view
3. How does the field of the solenoid at points A-E compare with that of a bar magnet (both
inside and outside)?
Which end of the solenoid corresponds to a north pole? Which end corresponds to a
south pole?
4. How would the magnetic field at any point within the solenoid be affected by the
following changes? Explain your reasoning in each case.
The current through each coil of the solenoid is increased by a factor of two.
The number of coils in each unit length of the solenoid is increased by a factor of
two, with the current through each coil remaining the same.
Transcribed Image Text:C. A solenoid is an arrangement of many current loops placed together as shown below. The current through each loop is the same and is in the direction shown. Obtain or draw an enlargement of the figure. 1. At each of the labeled points, draw a vector to indicate the direction and magnitude of the magnetic field. Use the principle of superposition to determine your answer. 2. Sketch magnetic field lines on the enlargement. Describe the magnetic field near the center of the solenoid, Cross-sectional side view 3. How does the field of the solenoid at points A-E compare with that of a bar magnet (both inside and outside)? Which end of the solenoid corresponds to a north pole? Which end corresponds to a south pole? 4. How would the magnetic field at any point within the solenoid be affected by the following changes? Explain your reasoning in each case. The current through each coil of the solenoid is increased by a factor of two. The number of coils in each unit length of the solenoid is increased by a factor of two, with the current through each coil remaining the same.
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