closed circuits allow current to flow.
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Closed circuits allow current to flow because they provide a complete path for electric charge to travel. When a circuit is closed, it means that there are no breaks or openings that interrupt the flow of electrons.
To better understand how closed circuits allow current to flow, let's break it down step by step:
1. Components: A closed circuit consists of various components, such as a power source (e.g., a battery), wires, and loads (e.g., light bulbs, motors, etc.).
2. Power Source: The power source, usually a battery, provides the voltage or electromotive force (EMF) that pushes the electrons in the circuit. The battery has a positive terminal (+) and a negative terminal (-).
3. Wires: The wires act as conduits, connecting the various components of the circuit. They are usually made of conductive materials, such as copper, which allows the flow of electrons.
4. Loads: Loads are devices or components that consume electrical energy in the circuit, such as light bulbs, motors, or resistors. These loads offer resistance to the flow of electrons, creating various effects, such as light or motion.
Now, when the circuit is closed, it means that there is a complete path for the electrons to flow. The electrons are repelled from the negative terminal of the power source and attracted to the positive terminal. As they move through the circuit, they pass through the loads, which convert the electrical energy into other forms like light or motion.
In summary, closed circuits allow current to flow because they provide a continuous path for the electrons to travel, from the power source, through the various components, and back to the power source. Without a closed circuit, the flow of electrons would be interrupted, and no current would be able to flow.