A magnet produces a vector field, the magnetic field, at all points in the space around it. It can be defined by measuring the force the field exerts on a moving charged particle, such as an electron. The force (F) is equal to the charge (q) times the speed of the particle times ...
The earth has a magnetic field. What does the magnetic field do? A. Makes the earth spin B. Attracts iron and steel C. Makes the sun shine D. Helps plants grow 相关知识点: 试题来源: 解析 B。本题考查对地球磁场作用的了解,地球磁场能吸引铁和钢。A 选项地球自转不是磁场的作用;C 选项...
What effect does a magnetic field have on a beam of radiation containing a mixture of alpha particles，beta particles，and gamma rays？这题的意思是：磁场对含有α粒子，β粒子，还有γ射线混合物的辐射光束有什么影响？Alpha particles are attracted to the negatively charged pole .Beta partic...
A. To make the earth look beautiful B. To attract things to the earth C. To protect the earth from solar winds D. To make the E. arth spin 相关知识点: 试题来源: 解析 C。解析:The main function of the earth's magnetic field is to protect the earth from solar winds. The magnetic...
So if magnetic fields are just weird relativistic effects, then where do magnetic poles, bar magnets, and whatnot come from? So far we’ve got that current flowing in the same direction down two wires makes those wires attract, and current flowing in opposite directions makes them repel. To...
Two magnets attracting (strong field in the middle between the magnets!) Two magnets repelling (almost no field in the middle between the magnets!) With these diagrams I hope you have a better understanding of the magnetic field. This is the field that makes motors spin, our compasses work,...
1. Which scientist established a law about attraction and repulsion, which lead to other scientists discovering more about magnetic fields? Albert Einstein Siméon-Denis Poisson Charles-Augustin de Coulomb Thomas Edison 2. Why is Earth surrounded by a magnetic field?
The magnetic field tensor is also known as electromagnetic tensor. It is 4×4 matrix. It represents the electromagnetic field in a...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework and st...
1. What makes prime numbers so special? 1.什么使素数如此特别? 2. Will the Navier–Stokes problem ever be solved? 2.纳维尔-斯托克斯问题会得到解决吗? 3. Is the Riemann hypothesis true? 3.黎曼猜想是真的吗? Chemistry 化学 1. Are there more color pigments to discover?
A magnetic field exerts a force on particles known as the Lorentz force, according to Georgia State University's HyperPhysics website. The force acting on an electrically charged particle in a magnetic field depends on the magnitude of the charge, the velocity of the particle, and the strength...