- 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

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**C. Solenoid Magnetic Field Analysis**

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.

**Tasks:**

1. Obtain or draw an enlargement of the figure.

2. **Vector Analysis at Labeled Points:**
   - At each of the labeled points (A, B, C, D, E), draw a vector to indicate the direction and magnitude of the magnetic field.
   - Use the principle of superposition to determine your answer.

3. **Magnetic Field Lines:**
   - Sketch magnetic field lines on the enlargement.
   - Describe the magnetic field near the center of the solenoid.

**Diagram Explanation:**

- The diagram presents a cross-sectional side view of a solenoid. Points A, B, C, D, and E are marked around and within the solenoid.

**Questions:**

3. **Comparison with a Bar Magnet:**
   - How does the field of the solenoid at points A–E compare with that of a bar magnet (both inside and outside)?
   - Determine which end of the solenoid corresponds to a north pole and which end corresponds to a south pole.

4. **Effect of Changes on Magnetic Field:**
   - How would the magnetic field at any point within the solenoid be affected by the following changes? Explain your reasoning in each case.

   - **Change 1:** The current through each coil of the solenoid is increased by a factor of two.
   
   - **Change 2:** 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.

**End of Task Description**
Transcribed Image Text:**C. Solenoid Magnetic Field Analysis** 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. **Tasks:** 1. Obtain or draw an enlargement of the figure. 2. **Vector Analysis at Labeled Points:** - At each of the labeled points (A, B, C, D, E), draw a vector to indicate the direction and magnitude of the magnetic field. - Use the principle of superposition to determine your answer. 3. **Magnetic Field Lines:** - Sketch magnetic field lines on the enlargement. - Describe the magnetic field near the center of the solenoid. **Diagram Explanation:** - The diagram presents a cross-sectional side view of a solenoid. Points A, B, C, D, and E are marked around and within the solenoid. **Questions:** 3. **Comparison with a Bar Magnet:** - How does the field of the solenoid at points A–E compare with that of a bar magnet (both inside and outside)? - Determine which end of the solenoid corresponds to a north pole and which end corresponds to a south pole. 4. **Effect of Changes on Magnetic Field:** - How would the magnetic field at any point within the solenoid be affected by the following changes? Explain your reasoning in each case. - **Change 1:** The current through each coil of the solenoid is increased by a factor of two. - **Change 2:** 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. **End of Task Description**
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