Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。

Chapter 29: Magnetic Fields

第29章:磁场

What is a magnetic field?

什么是磁场?

What is the nature of the sources of magnetic fields?

磁场的来源是什么?

What is meant by magnetic field lines?

磁场线是什么意思?

What kind of force does a magnetic field exert on a charge? on a current in a wire? on charges in a wire when the wire is moved through the magnetic field?

磁场对电荷施加什么类型的力?对导线中的电流施加什么类型的力?当导线通过磁场运动时,对导线中的电荷施加什么类型的力?

Show how to evaluate the torque exerted by a magnetic field on a current loop.

说明如何计算磁场对电流环的力矩。

How does a moving charge behave when it enters a uniform magnetic field?

带电粒子进入均匀磁场时的行为是怎样的?

How can you calculate the radius of curvature of the path of a charge in a magnetic field?

如何计算带电粒子在磁场中运动轨迹的曲率半径?

Explain the operating principles of a mass spectrometer?

解释质谱仪的工作原理?

Explain how to use a magnet and an electric field to make a velocity selector for a mass spectrometer so that only particles with a specified velocity enter the instrument.

用磁体和电场制作一个速度选择器,使只有具有指定速度的粒子能够进入质谱仪。

Describe the Hall effect. How is it useful?

描述霍尔效应。它有什么用途?

What is a magnetic dipole?

什么是磁偶极子?

What is the role of the Earth's magnetic field in producing the aurora?

地球磁场在产生极光中的作用是什么?

Describe the operating principles of a cyclotron.

描述回旋加速器的工作原理

What is a proton synchrotron?

什么是质子回旋加速器?
*Magnetic field

*Magnetic field of a current

*Bar magnet

*Magnetic field of the Earth

*Electromagnet

*Magnetic force

*Torque on current loop

*Magnetic moment

*Centripetal acceleration

*Charges in magnetic field

*Mass spectrometer

*Velocity selector

*Hall effect

*Aurora

*Cyclotron

磁场 磁场的电流 磁铁 磁场的地球 电磁体 磁力 电流环的力 磁矩 向心加速度 电荷在磁场中的运动 质谱仪 速度选择器 霍尔效应 极光 回旋加速器
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HyperPhysics ***** 物理学 2212K
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Chapter 30: Sources of Magnetic Field

第三十章:磁场的源

Describe the role of electric current as a source of magnetic field.

描述电流作为磁场源的作用。

How do you calculate the magnetic field produced by current in a wire (Biot-Savart law)?

如何计算电流在导线中产生的磁场(毕奥-萨伐尔定律)?

Describe Ampere's law and the conditions under which it can be used to calculate magnetic fields.

描述安培定律及其在计算磁场时的使用条件。

Use Ampere's law to calculate the magnetic field from an infinite straight wire.

用安培定律计算无限长直导线的磁场。

How can the Biot-Savart law by used to find the magnetic field from a finite straight wire?

毕奥-萨伐尔定律如何用来求解有限直导线的磁场?

Describe the force on a straight, current-carrying wire.

描述直导线中通有电流的导线所受的力

Describe the force between two straight conductors.

描述两条直导体之间的力。

Describe the magnetic field of a current loop.

描述电流环的磁场

Show how to calculate the field at the center of a current loop using Biot-Savart law. How do you calculate the field on axis?

如何利用毕奥-萨伐尔定律计算电流环心处的磁场?如何计算轴线上某点的磁场?

What is a solenoid?

什么是螺线管?

Show how Ampere's law can be used to obtain the magnetic field inside a long solenoid.

说明如何利用安培定律求得长螺线管内部的磁场。

Show how the Biot-Savart law can be used to evaluate the field in a finite solenoid.

说明如何利用毕奥-萨伐尔定律计算有限长螺线管中的磁场。

Optional topics: Magnetic materials

可选主题:磁性材料

Describe the three main classes of magnetic materials: paramagnetic, diamagnetic, and ferromagnetic.

描述三种主要的磁性材料:顺磁性、抗磁性和铁磁性。

What is hysteresis?

什么是滞回?

Describe a magnetic dipole. Are all magnetic sources dipoles?

描述一个磁偶极子。所有的磁源都是偶极子吗?

What is meant by "magnetic moment"? What is the magnetic moment of an electron?

什么是‘磁矩’?电子的磁矩是什么?

What is origin of the electron's magnetic moment?

电子的磁矩的起源是什么?

Describe Gauss' law for magnetism. What do we learn from it?

描述磁场的高斯定律。我们从其中学到什么?
*Electric current

*Biot-Savart law

*Ampere's law

*Magnetic field of straight wire

*Magnetic field geometry

*Magnetic field: finite wire

*Magnetic force on conductor

*Force between conductors

*Magnetic field of current loop

*Field at center of loop

*Field on axis of loop

*Solenoid

*Electromagnet

*Ampere's law for solenoid

*Finite solenoid





*Paramagnetism

*Diamagnetism

*Ferromagnetism

*Hysteresis

*Torque on a current loop

*Magnetic moment

*Electron spin

*Spin magnetic moment

*Gauss' law for magnetism

* 电流 * 毕奥-萨伐尔定律 * 安培定律 * 直导线的磁场 * 磁场几何 * 磁场:有限导线 * 导体上的磁力 * 导体间的力 * 电流环的磁场 * 环心处的磁场 * 环轴上的磁场 * 磁瓶 * 电磁体 * 磁瓶的安培定律 * 有限磁瓶 * 顺磁性 * 抗磁性 * 铁磁性 * 滞后现象 * 电流环的力矩 * 磁矩 * 电子自旋 * 自旋磁矩 * 高斯磁定律
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