物理题如图所示,R1=30Ω如图所示,R1=30Ω,滑动变阻器的滑片P在中点时,伏特表的示数为3V,滑片P在b端时,伏特表的示数为4.5V,求电源电压和滑动变阻器的阻值?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 09:18:51
![物理题如图所示,R1=30Ω如图所示,R1=30Ω,滑动变阻器的滑片P在中点时,伏特表的示数为3V,滑片P在b端时,伏特表的示数为4.5V,求电源电压和滑动变阻器的阻值?](/uploads/image/z/10845825-33-5.jpg?t=%E7%89%A9%E7%90%86%E9%A2%98%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2CR1%3D30%CE%A9%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2CR1%3D30%CE%A9%2C%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E7%9A%84%E6%BB%91%E7%89%87P%E5%9C%A8%E4%B8%AD%E7%82%B9%E6%97%B6%2C%E4%BC%8F%E7%89%B9%E8%A1%A8%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B8%BA3V%2C%E6%BB%91%E7%89%87P%E5%9C%A8b%E7%AB%AF%E6%97%B6%2C%E4%BC%8F%E7%89%B9%E8%A1%A8%E7%9A%84%E7%A4%BA%E6%95%B0%E4%B8%BA4.5V%2C%E6%B1%82%E7%94%B5%E6%BA%90%E7%94%B5%E5%8E%8B%E5%92%8C%E6%BB%91%E5%8A%A8%E5%8F%98%E9%98%BB%E5%99%A8%E7%9A%84%E9%98%BB%E5%80%BC%3F)
xUMOa+H}vMzf6Yf?iUhA *HHTR$Z0"r_pn[J1=<3J˒
3*J!&"K:bhĒVa+-:ClITMGuPѮ%`.EaԐJk*)h.h:+rq`!T=Q=z {`(@lJƐ(fh<6s0ǐ/m
RoΕmۨ=ka^$=y@(כsOU/7Y۰Wꮃq)Ҁ
T5ޕY݂wN1Tbd:%ksSڜs,jD YJxk=c