摘要
在大学物理教学中,关于圆盘状物体的物理量有很多,如电学中带电圆环、带电圆盘,其周围空间产生的电场强度和电势怎样计算?关于铜质圆盘状物体在磁场中转动时产生的电动势的计算问题等;力学中圆盘的转动惯量、椭圆盘的转动惯量,圆盘状物体转动时的摩擦力矩问题、驱动力做功问题等.本文将对这些物理量进行分析,并找出一些共同的规律和特点,将其归纳总结,计算所需要的物理量.
There are many physical quantities on the disc shaped objects in college physics teaching, such as the charged ring, the charged disc, and how to calculate the electric field intensity and potential produced by them, what about the calculation of the potential produced by the rotating copper disc in a magnetic field, including the moment of inertia both for disc and oval shaped objects in dynamics, the friction torque, the question of work done by driving force, and so on. In this paper, we give a detailed study of the physical quantities, and find out their rules and characteristics by means of some measures. At last, we summarize and calculate the required results.
出处
《物理与工程》
2014年第5期51-53,58,共4页
Physics and Engineering
基金
贵州省科学技术基金项目:基础物理学问题专题研究(项目合同编号:黔科合J字LKS[2013号])
关键词
圆盘
半径
质量
电场强度
电势
电动势
disc shaped objects
radius
mass
electric field intensity
potential
electromotive force
