In a magnetic field, a compass needle always points in the direction of ___. A. the north pole of the magnet B. the south pole of the magnet C. east D. west 相关知识点: 试题来源: 解析 A。指南针在磁场中总是指向磁体的北极。选项 B 是磁体的南极,指南针指向的是北极;选项 C 和 D ...
PURPOSE: A device for varying the direction of magnetic field of a magnet member installed in a magnetic roll of a coater is provided, thereby enabling the intensity of the magnetic force applied to the surface of steel to be controlled. CONSTITUTION: The device comprises a control part(30) ...
Magnetic field sensor device for detecting the stroke of movable components That the three-dimensional component of the magnetic field of the magnet type which is provided in the configuration component which exercises, the stroke which it tries will detect in the direction of the component, extendin...
magnetic force(iv)The shape of the Earth's magnetic field is as though there were a bar magnet at the centre of the Earth, aligned approximately on the North-South axis.If the plane flies west to east, but above the equator, the wing tips do not become charged.Explain why.(Magnetic) ...
This paper presents a new method which can not only measure the magnitude but also the direction of the magnetic field. A structure with a cantilever driven in different modes is used. The magnetic field direction and magnitude are detected by measuring the vibration amplitudes of the different ...
<p>To solve the problem, we need to analyze the behavior of a rod suspended in a magnetic field and determine whether we can conclude the direction of the magnetic field based on the orientation of the rod.</p><p>1. <strong>Understanding the Orientation
a magnetoresistance element signal; a first current conductor operable to generate a first AC magnetic field in an x-direction and a second current conductor operable to generate a second AC magnetic field in a y-direction; and a component determination circuit comprising at least two of: a ...
THE determination of the direction of the resultant force, at any point, due to a long, thin magnet, is of some importance as a laboratory exercise, and it is necessary to be able to compare the direction which a small needle takes up in its field with the theoretical direction. For ...
magnitude and direction of spontaneous magnetization in the ferromagnetic material internal basic uniform small area known as magnetic domains, its size is about 10-5cm3 in this small area, containing about 1012 ~ 1015 atoms, each atom magnetization in the same direction, external showing magnet ...
the magnitude of the force equalsqvBsin ϕ. An interesting result of the Lorentz force is the motion of a charged particle in a uniform magnetic field. Ifvis perpendicular toB(i.e., with the angle ϕ betweenvandBof 90°), the particle will follow a circulartrajectorywith a radius ofr=...