**GE6252 notes BASIC ELECTRICAL AND ELECTRONICS ENGINEERING BEEE**

GE6252 notes BEEE notes Regulation 2013 Anna University free download. BASIC ELECTRICAL AND ELECTRONICS ENGINEERING BEEE notes pdf free download.

**GE6252 notes BASIC ELECTRICAL AND ELECTRONICS ENGINEERING BEEE notes:**

A DC circuit (Direct Current circuit) is an electrical circuit that consists of any combination of constant voltage sources, constant current sources, and resistors.

In this case, the circuit voltages and currents are constant, i.e., independent of time. More technically, a DC circuit has no memory.

That is, a particular circuit voltage or current does not depend on the past value of any circuit voltage or current.

This implies that the system of equations that represent a DC circuit do not involve integrals or derivatives.

If a capacitor and/or inductor is added to a DC circuit, the resulting circuit is not, strictly speaking, a DC circuit. However, most such circuits have a DC solution.

(GE6252 notes BEEE notes BASIC ELECTRICAL AND ELECTRONICS ENGINEERING notes)

This solution gives the circuit voltages and currents when the circuit is in DC steady state.

More technically, such a circuit is represented by a system of differential equations. The solution to these equations usually contain a time varying or transient part as well as constant or steady state part. It is this steady state part that is the DC solution.

There are some circuits that do not have a DC solution.

Two simple examples are a constant current source connected to a capacitor and a constant voltage source connected to an inductor.

In electronics, it is common to refer to a circuit that is powered by a DC voltage source such as a battery or the output of a DC power supply as a DC circuit even though what is meant is that the circuit is DC powered.

Semester | 2 |

Subject | BASIC ELECTRICAL AND ELECTRONICS ENGINEERING |

Subject Code | GE6252 – BEEE |

Regulation | 2013 |

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