Simple Circuit Diagram

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Simple Circuit Diagram

A simple circuit is a closed path that allows electric current to flow through it. It consists of three basic components: a source of voltage, a conductive path, and a resistor . The source of voltage provides the energy that drives the current, while the conductive path is the medium through which the current flows. The resistor, on the other hand, is a component that resists the flow of current and converts electrical energy into other forms of energy, such as heat or light .

The flow of current in a simple circuit is driven by the difference in potential energy between two points in the circuit. This difference in potential energy is known as the voltage, and it is measured in volts (V) . The current flowing through the circuit is measured in amperes (A), and it is directly proportional to the voltage and inversely proportional to the resistance of the circuit . This relationship is known as Ohm’s law, which states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance .
imple circuits can be illustrated via analogies of water, rivers, lakes, and dams. If there are two lakes, with a trench dug to connect them, and both lakes have water at the same height, then the water in the trench will not flow in either direction. There isn’t anything driving the system. A given parcel of water has the same potential energy and feels the same atmospheric pressure whether in one lake or the other, so there can be no net transport of water. If this changes, and the height of the water in one lake is greater than the other, then water will flow. Now, the pressure on the trench from the water in the higher lake is greater than the corresponding pressure from the lower lake, and hence water should flow out of the higher lake, through the trench, and into the lower lake. If it were possible to keep the water level in the two lakes constant, for instance by replacing the water that leaves the high lake, and removing the water that enters the low lake, then there would be a steady flow of water through the trench. Moreover, the flow speed could be altered by altering the lakes and trench. The simplest phenomenological relation consistent with this logic is `flow = push/resistance` .

In summary, a simple circuit is a fundamental concept in electrical engineering that involves a source of voltage, a conductive path, and a resistor. The flow of current in a simple circuit is driven by the difference in potential energy between two points in the circuit, and it is directly proportional to the voltage and inversely proportional to the resistance of the circuit. Ohm’s law is a fundamental relationship that governs the behavior of simple circuits. The river-dam analogy is a useful tool for understanding the flow of current in simple circuits .