1/00Force current1/8FORCE ON A CURRENT IN A MAGNETIC FIELDPURPOSE:To study the force exerted on an electric current by a magnetic field.BACKGROUND:When an electric charge moves with a velocity v in a magnetic fieldB, it experiences a magnetic force, called the Lorentz force,,(1)which ...
14.磁场(magnetic field)对电流(electric current)的作用一.对运动电荷的作用1.洛仑兹力(Lorentz force):f = q vB 大小: f = q v B sin 方向:右手螺旋法则(right-handed screw rule)( q0 q0)2.运动轨迹(匀强磁场) VB:匀速圆周运动 半径: qRRvmqvB2qBmvR2周期:qBmvRT223.霍尔效应(Hall effect):匀...
§4.磁场(magnetic field)对电流(electric current)的作用 一.对运动电荷的作用 1.洛仑兹力(Lorentz force):f = q v×B 大小: f = q v B sinθ 方向:右手螺旋法则(right-handed screw rule)( q>0 q<0) 2.运动轨迹(匀强磁场) V⊥B:匀速圆周运动 半径: 周期: 2.磁力矩(magnetic moment) ( 仅...
When a current carrying conductor is placed at right angles to a magnetic field, it is found that a force acts on the conductor in a direction perpendicular to the direction of both the magnetic field and the current. Explanation Consider a straight conductor carrying a current of I amperes....
IB物理 IB Physics 知识点讲解|5.4 Magnitude of magnetic force on a moving charge 42 0 40:12 App IB Physics IB物理 在物理中处理向量 - Manipulate vectors in physics 48 0 08:51 App IB物理 IB Physics 知识点讲解|5.4 Magnetic field by a solenoid or single loop 121 0 12:45 App IB Phy...
magnetic field of 45.5 tesla—the highest field achieved so far, to our knowledge. The magnet uses a conductor tape coated with REBCO (REBa2Cu3Ox, where RE = Y, Gd) on a 30-micrometre-thick substrate3, making the coil highly compact and capable of operating at the very high winding ...
What is the force experienced by a semicircular wire of radius R when it is carrying a current l and is placed in a uniform magnetic field of induction B as shown in figure. ? View Solution What is the torque on a current carrying loop placed in a uniform magnetic field?
A power-line carrying a current of10,000Ais hanging above the ground at a location where the earth's magnetic field makes an angle of 40 degrees with the power-line. What is the magnetic force exerted on a 1-meter segment of the power-line, if the magnetic field of the...
The method involves determining magnetic force (F) as a result of the magnetic field (M) on a metal body (1). Magnetic field is generated by the current, which is to be measured. The magnetic force is transferred from the metal body evaluated on a pressure sensor (2) and an electronic...
The force exerted on one electric current by the magnetic field of a second current has been calculated. This result is used to define the ampere in terms of the force between two parallel current-carrying conductors.doi:10.1016/B978-0-12-059860-1.50038-2George B. Arfken...