图示电路中，已知R=400 Ω，XL =100Ω，XC =200 Ω，，则电源电压有效值为 V，初相位为 。（答案保留小数点后一位）https://edu-image.nosdn.127.net/6977AEA7D8A31D994BF396B51CEE9663.JPG?imageView&thumbnail=520x520&quality=100https://edu-image.nosdn.127.net/3C19B5D9F70BE3D96EBD384FEFEC409A.JPG?imageView&thumbnail=520x520&quality=100https://edu-image.nosdn.127.net/E4D86955B2583C2C705A670D0AAEA57E.JPG?imageView&thumbnail=520x520&quality=100
举一反三
- 在图示电路中，开关S在t = 0 瞬间闭合，若 ，则的值为 。https://edu-image.nosdn.127.net/603FA3CFEE078FE23C1C1AB3CE9DA570.JPG?imageView&thumbnail=520x520&quality=100https://edu-image.nosdn.127.net/9375A351886F0559BABEB2C776258F45.JPG?imageView&thumbnail=520x520&quality=100https://edu-image.nosdn.127.net/E5769221F83FE03A5BD4FFD13AAE0AD1.JPG?imageView&thumbnail=520x520&quality=100
- 图示电路原已处于稳态，t=0时换路。换路后的电压。https://edu-image.nosdn.127.net/3C4203532DBC1FFB2B97C36F21D51434.JPG?imageView&thumbnail=520x520&quality=100https://edu-image.nosdn.127.net/16F3EA4E195B8D462CDF4171A4BCC909.JPG?imageView&thumbnail=520x520&quality=100
- 在图示电路中，当开关S闭合时电路已处于稳态，开关S打开后，电流i为 。https://edu-image.nosdn.127.net/AE670F7BF5D938FD293AED23C07D8B09.JPG?imageView&thumbnail=520x520&quality=100https://edu-image.nosdn.127.net/C97308C0E00BDFE7467D1B8E703B9B70.JPG?imageView&thumbnail=520x520&quality=100
- https://edu-image.nosdn.127.net/7DC9333C2E354E878E3200F31EF46719.png?imageView&thumbnail=520x520&quality=100
- https://edu-image.nosdn.127.net/86DE24FCC064B3F1E1CAC249B9B67818.jpg?imageView&thumbnail=520x520&quality=100