《大学物理学》课程电子教案（PPT教学课件）第十三章 电磁感应、电磁场 习题课

一. 位移电流 包含电阻、电感线圈的电路,电流是连续的

考察在开关合上后的一段时间内，电路中的电流滋长过程：

一、自感应 由于回路自身电流的变化，在回路中产生感应电动势的现象。 实验指出：

动生电动势的成因，导线内每个自由电子，受到的洛仑兹力为

一、电磁感应现象

Alexander graham bell an inspired black-haired scotsman of twenty eight, on the eve of marriage, vibrant and alive to new ideas Alexander Graham bell. The Man who invented the Telephone A| xander graham be‖l 1847to1922

1. What causes today's reduced use of traditional fans? 2. Why does the author consider having no time to sit and fan oneself a big loss? 3. Where can one find elegant fans in New York City?

Pre-reading Questions 1. Why were the girls warned that they should not regard school as \Brighton beach\ and what was implied in the warning? 2.What is the purpose of education according to the author?

《海南大学学报人文社会科学版》：论南海区域渔业活动所面临的困境与解决方案（张晏瑲、张旭东）