Cho đoạn mạch xoay chiều LRC nối tiếp, có biểu thứ...
Câu hỏi: Cho đoạn mạch xoay chiều LRC nối tiếp, có biểu thức của hiệu điện thế ở hai đầu đoạn mạch LR là u1 = 50cos(100 πt + π/3) (V), L = CR2 và uLR sớm pha so với uAB là π/3 rad. Biên độ và pha ban đầu của uRC là
A ![50\sqrt[6]{3}(V),-\pi /6](data:image/gif;base64,R0lGODlhegAWALMAAP///wAAAO7u7tzc3FRUVJiYmMzMzKqqqoiIiHZ2drq6uiIiIkRERBAQEGZmZjIyMiH5BAEAAAAALAAAAAB6ABYAAAT+EMhJq711hM05/mAojmRpUoRxrmzrmkahFNTAvHiunwIhKRSHSiSglYy7ZEWwOhBmQIngNnIwSwKH0uQDaTiEK+CAKCCiFadkMUmgC2YCUnKeIBYBIaUQWBwkB3NbHwMJFGRmQwMFBgZiAApUAA9DNVoAbABTbUYCAXMPFQgBFj0VoYMhCQMTDggSBF0DfxYMtAAFXaJmUW6tkg26gWkBjwCvu6kgkgqoAAOsz7cUAZUKDUTOS58TDNETBtUUCpXgksoVCsiThhYDCAgHvs8B3+FiWRbxGAnn2Nu3BKyr8A/HgAcdNhRsJeZTATK3BuhaACScvXoSDCQIMG3ShQP+DsJQWDghQLtjH0jlcMDq1YFvFXRpuATA1oV+ACyCwzjhgbZ9GAw0UJTpVJcD5SosMLZC0Z+TaW6FQ1KAJB1SGqwVGydOgrYLBP4NKIoilEAQS0EYYMC2rduBCZjQjEnBE5oDWxvcQvAvwF2rC6jAsZCiDUYBVgEkwAb1QuIWVM5NMEXtFl4m3ibEksAACQJdE/iw+krvFgGVABLzYRTicZN2qCnUQbHujoQCVwY0iBapJ8wJDRyYuXkF8brM6QIMvLB2gkSmJB5E6UpB8rOi0kMjSMDyULx5+gKQtpPg87TBS8aLkspthYCiDNBIGDAXnCsH8l94Wj5iEwvSHe0vkEBS6EDSwoArzGBBgDpYV+AL9RERoQLQ4WAAfw+6UIQJuC2YihUZhijiBxGCEAEAOw==)
B ![50\sqrt[3]{3}(V),-\pi /6](data:image/gif;base64,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)
C ![50\sqrt[6]{3}(V),-\pi /3](data:image/gif;base64,R0lGODlhegAWALMAAP///wAAAO7u7tzc3FRUVJiYmMzMzKqqqoiIiHZ2drq6uiIiIkRERBAQEGZmZjIyMiH5BAEAAAAALAAAAAB6ABYAAAT+EMhJq711hM05/mAojmRpUoRxrmzrmkahFNTAvHiunwIhKRSHSiSglYy7ZEWwOhBmQIngNnIwSwKH0uQDaTiEK+CAKCCiFadkMUmgC2YCUnKeIBYBIaUQWBwkB3NbHwMJE3AIchMDBQYGYgAKVAAPQzVaAGwAU21GAgFzDxUIARY9FaKDIQkDEgmeoBIDfxYMtAAFXaNmUW4TDpMNuoFpAZAACBZlqiCTwBPCsrcUAZYKDUSpprESDK0UBtUUCpYTBpPMFQrJ20YDCAgHvgAa3wDhYlnK0xQJ6NhLAtwSwM4CQBwDHnTYcPDXMVeTBuhaACScPYsSDCQQiOrCAQf+YSg0nBDAEJ0PpXI4aJXsgL0KuiZ8DHnB370AF3FSeKANGT9wDYYM0ISqy4FyFRY8PCH0j0kLB35mDHqBFD1xP4yNw0opBAGAQy8QEEUQhFIQ5xioXbu2IIAETDBZiDkXYINbCAAGQHNgZCYqcOZa2thKgN+32J5iONyCCroJp1AM1ultAoEuDJAkssCnVU9ZHCUQSAngMJ9GIRg3MUmaQp1FoQGMllDgyoAG3yRNePASmgMzNa8YLlhZXQC3F84torniQRSuEx6/Fd6goJkEKymQkYdmVIDPrhMkmhZ4Cfh95rjxIMqgOz254cfv+IR8BCcW4KXmSIA0XaQW/K0lMANUqkjn3wvw2ZdgJEvhYEB9B7pQhAm1ETiIFRFmqOEHC4IQAQA7)
D ![50\sqrt[3]{3}(V),-\pi /3](data:image/gif;base64,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)
Đáp án
A
- Hướng dẫn giải
Phương pháp giải:
Giải chi tiết:
Đáp án A
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