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相关概念视频

Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

1.5K
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
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Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

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Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
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Magnetic Field Due To A Thin Straight Wire01:28

Magnetic Field Due To A Thin Straight Wire

4.8K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
4.8K
Charging Conductors By Induction01:15

Charging Conductors By Induction

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The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
7.8K

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相关实验视频

Updated: Jul 5, 2025

Construction of Microdrive Arrays for Chronic Neural Recordings in Awake Behaving Mice
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Construction of Microdrive Arrays for Chronic Neural Recordings in Awake Behaving Mice

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消失的绳:一个案例报告

Yong Ge1,2, Jiayi Wang1,2, Fayez Kheir3

  • 1Thoracic Surgery Laboratory, Xuzhou Medical University, Xuzhou, China.

Journal of thoracic disease
|January 22, 2024
PubMed
概括
此摘要是机器生成的。

在肺结节定位到肺动脉期间,线迁移很少发生. 该病例详细介绍了从肺动脉中成功切除迁移的子线的手术,从而防止进一步的并发症.

科学领域:

  • 心胸外科手术 心胸外科手术
  • 干预性肺病学 干预性肺病学
  • 医疗成像医学成像

背景情况:

  • 肺结节的定位对于手术切除至关重要.
  • 线通常用于精确定位小型肺结节.
  • 这些电线的迁移是一个罕见但重要的并发症.
关键词:
肺部结节 在肺部结节.案例报告案例报告子电线 子电线肺动脉中的肺动脉.

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