对于串联谐振,电路中的电阻愈大Q值就愈低,相应地线路电流或电路阻抗的谐振曲线也就愈平、愈宽。 wire carrying a current looks exactly the same and weighs exactly the same as it does when it is not carrying a current. 一根带电的导线其外表与重量都与不带电导线完全一样。 mo...