暂态过程也称瞬变过程,指的是在阶跃电压(0→或→0)作用下RL组成的电 路,因存在ε而电路电流i不会瞬间突变;或RC电路中,u不可能突变。 在RL、RC等电路中,在阶跃电压作用下i或从开始发生变化到渐达稳态有一 个过程,此过程即暂态过程(指从一个稳态→另一个稳态的过程),研究此过程中有 关电流、电压等的时变规律和电路特点

作为感生电动势的进一步讨论,本节就两线圈情况据磁通来源不同研究互感、自感电动势。 一、互感与自感现象 1、两载流线圈 如图6-19的任意形状载(变)流i()、i2(t)的回路,各N1,N2匝

The finite element melod I In FEM I We derived basis functions of arbitrary order for Hhe rod Model

Ann Richards: 1988 Democratic National Convention Keynote Address Thank you. Thank you. Thank you, very much. Good evening, ladies and gentlemen. Buenas noches, mis amigos. I'm delighted to be here with you this evening, because after listening to George Bush all these years, I figured you needed to know what a real Texas accent sounds like

Lyndon Baines Johnson: \We Shall Overcome\ Mr. Speaker, Mr. President, Members of the Congress: I speak tonight for the dignity of man and the destiny of democracy. I urge every member of both parties, Americans of all religions and of all colors, f rom every section of this country, to join me in that cause. At times history and fate meet at a single time in a single place to shape a turning

Jimmy Carter: \Energy and the National Goals - A Crisis of Confidence\ Good Evening: This a special night for me. Exactly three years ago, on July 15, 1976, I accepted the nomination of my party to run for President of the United States. I promised you a President who is not isolated f rom the people, who feels your pain, and who shares

Franklin D. Roosevelt: The Four Freedoms Mr. Speaker, members of the 77th Congress: I address you, the members of this new Congress, at a moment unprecedented in the history of the union. I use the word “unprecedented” because at no previous time has American security been as seriously threatened f rom without as it is today

6. 8 Diffusion Mechani sm Flick's' law in microscopic form 1. One dimensional diffusion. jump frequency period probability of atom jumping to nearest position

#include maino int 1=0 for(i; 1<5; 1++) printf(\%d \i)

Lead-in The news that a sheep in Scotland has been successfully cloned 1) got me wondering What good would it be to clone humans? What would I do with a clone of myself? Then 2) it hit me that I could have my clone go into work for me while went out hiking, biking, sking,etc.! really could be in two places at once