A resistive circuit is a circuit containing only resistors, ideal current sources, and ideal voltage sources. If the sources are constant (DC) sources, the result is a DC circuit. Analysis of a circuit consists of solving for the voltages and currents present in the circuit. A network, in the context of electronics, is a collection of interconnected components. Network analysis is the process of finding the voltages across, and the currents through, all network components. There are many techniques for calculating these values.
Understand the importance of Ohm’s law and how to apply it to a variety of situations.
Be able to plot Ohm’s law and understand how to “read” a graphical plot of voltage versus current.
Become aware of the differences between power and energy levels and how to solve for each.
Understand the power and energy flow of a system, including how the flow affects the efficiency of operation.
The first equation to be described is without question one of the most important to be learned in this field.
It is applicable to dc circuits, ac circuits, digital and microwave circuits, and, in fact, any type of applied signal.
The equation can be derived directly from the following basic equation for all physical systems:
Every conversion of energy from one form to another can be related to this equation.
In electric circuits, the effect we are trying to establish is the flow of charge or current.
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