复阻抗Z=J5欧姆,该电路为什么电路? RLC串联电路如图3-2所示，求ab两端的等效复阻抗z= (...
\u5982\u56fe\u6240\u793a\uff1aR=Xc=10\u6b27\uff0cUab=Ubc\uff0c\u4e14\u7535\u8def\u7aef\u7535\u538b\u548c\u603b\u7535\u6d41\u540c\u76f8\uff0c\u6c42\u590d\u963b\u6297Z.\u6709\u4e00\u53e5\u8bdd\u6700\u91cd\u8981 \u5c31\u662f\u7535\u8def\u7aef\u7535\u538b\u548c\u603b\u7535\u6d41\u540c\u76f8 \u8fd9\u8bc1\u660e\u4ec0\u4e48\u5462\uff1f\u5c31\u662f\u8bc1\u660e \u6574\u4e2a\u7535\u8def\u662f\u7eaf\u963b\u6027\u7684 \u56e0\u4e3a\u4e00\u65e6\u6709\u590d\u6570\u5f62\u5f0f\u5b58\u5728 \u963b\u6297\u5c31\u4f1a\u6709\u963b\u6297\u89d2 \u6240\u4ee5\u7535\u538b\u9664\u4ee5\u963b\u6297\u4e4b\u540e\u5f97\u5230\u7684\u603b\u7535\u6d41\u5c31\u4e0d\u548c\u7535\u538b\u540c\u76f8\u4e86
\u6309\u7167\u4e0a\u9762\u7684\u6765\u89e3\u51b3 \u9996\u5148\u6c42RC\u5e76\u8054\u7684\u7b49\u6548\u963b\u6297 R=10\u03a9 \u7535\u5bb9\u662f-j10\u03a9 \u5e76\u8054\u540e \u7b49\u6548\u963b\u6297\u4e3a5-j5 \u6240\u4ee5\u4e3a\u4e86\u4f7f \u7535\u6d41\u4e0e\u7535\u538b\u540c\u76f8 Z\u7684\u865a\u90e8\u4e3aj5\u6b27\u59c6 \u53c8UAB=UBC\u6240\u4ee5\u4e24\u4e2a\u7684\u5b9e\u90e8\u76f8\u7b49
\u6240\u4ee5 Z=5+j5
\u4ee5\u4e0a \u660e\u767d\u5426
\u6b63\u786e\u7b54\u6848\u662fB
Z=5+j(10-5)=5+j5
=\u221a(5²+5²)\u2220arctg(5/5)
=5\u221a2\u222045º \u03a9
\u2235\u963b\u6297\u89d2\u03c6=45º>0
\u2234\u7535\u8def\u5448\u611f\u6027\u3002
该电路是纯电感电路.
不一定是纯电感电路. 该电路肯定是呈现感性的。。。（比如电感是j20电容是-j10但总体还是呈感性的）
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