The electric clock on the wall, radio and television, the incredibly rapid handlingof information by computers, and the transmission of signals by our own nervesare among countless devices and effects that depend on circuits in which currentsor voltages vary with time. Alternatinq-current (ac) circuits, in which chargesoscillate back and forth in a wire in such a way that the average current iszero,are among the simpler time-varying circuits. In this module you will studythe behavior of simple ac circuits containing resistors, inductors, and capacitors.
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