... 56 current (/),11-12,37-42 dependent sources, 26-27,29,42-45 electrical engineering and, 2-8 electrical resistance, 30-33 electrical safety of, 25,46-74 energy and, 14-17 first-order, ... 564,594 Frequency-selective circuits, 522-603 active filter circuits, 558-603 attenuation, 522 circuit symbols for, 524 filters, 522-523,550 passive filter circuits, 522-557 Functional ... 363-367,373-375,386 three-phase circuits, 445-446,452-454 two-wattmeter method, 415-417,419 wye (Y) connected loads, in, 410-411,419 B Balanced three-phase circuits, 398-427 average power...