In practice, the electrical circuits may consist of one more sources of energy and number of electrical parameters, connected in different ways. The different electrical parameters or elements are resistors, capacitors and inductors. The combination of such elements alonghith various source of energy gives rise to complicated electrical circuits,generally referred as networks. The terms circuit and network are used synonymously in the electrical literature. The d.c. circuits consist of only resistances and d.c. sources of energy. And the circuit analysis means to find a current through or voltage acrross any branch of the circuit.
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