Array ( [0] => Array ( [title] => L14A [link] => https://www.youtube.com/embed/G1nDl2RMjKw\ ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第14講|Lecture 2 Electrostatics|2_5 Conductors 2_5_1 Basic Properties