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Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

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Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process, commutators...
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Magnetic Fields01:27

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A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
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Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
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The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
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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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电流驱动的磁域墙逻辑

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此摘要是机器生成的。

研究人员使用磁域墙开发了全电逻辑门,使得可扩展的计算超出了传统的电子设备. 这一突破利用了合数据来有效地处理数据,并为先进的逻辑内存应用铺平了道路.

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科学领域:

  • 机器人
  • 材料科学
  • 计算机工程

背景情况:

  • 基于旋转的逻辑提供了诸如非挥发性数据保留和低泄漏等优势.
  • 磁域墙架构承诺高密度和灵活的信息处理.
  • 现有的域墙方案需要外部磁场,限制可扩展性.

研究的目的:

  • 使用域墙赛道演示全电逻辑操作和级联.
  • 克服外部磁场控制在旋转逻辑中的局限性
  • 开发一个可扩展的磁逻辑电路平台.

主要方法:

  • 通过利用Dzyaloshinskii-Moriya的界面相互作用来进行合.
  • 使用电流诱导的域壁运动进行逻辑运算.
  • 制造的域墙逆变器,NAND,NOR,XOR,和完整的添加器门.

主要成果:

  • 通过域墙运动成功执行全电逻辑操作.
  • 证明了可重新配置的NAND和NOR逻辑门.
  • 连锁NAND门构建XOR和完整的添加器电路,显示电控.

结论:

  • 开发了一个可行的可扩展全电磁逻辑平台.
  • 展示了复杂逻辑函数的域墙赛道的潜力.
  • 这为未来的逻辑内存应用铺平了道路.