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Describe the path electrons take in a simple flahlight circuit.

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Q: Describe the path electrons take in a simple flashlight circuit?
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How a simple circuit works and what are the parts needed for it to work?

The simplest circuit consists of a current source and a resistant element--for example, a battery and an LED bulb. Circuits work by establishing a difference in charge across the terminals of the battery, which can be thought of as pulling or attracting electrons through the wires. The resistant element partially blocks the travel of the electrons, preventing the dangerous state of uncontrolled electron motion known as a short circuit.


What does a simple circuit consists of?

Electrical energy


What law is used to find the polarity of a circuit?

It is possible that Kirchoff's law will answer this question. But why make it hard? It is customary to find the polarity of a circuit by simple inspection. Let's do a basic circuit and see how it works. Draw a square. Put a battery in the left side, and put the positive terminal down and the negative terminal up. Put a resistor in the right side. Two components - a simple series circuit. The battery will be "sending out" electrons from the negative terminal (the top one), and it will be "collecting them in" at the positive terminal (the bottom one). Put a "-" by the top of the battery to label that terminal. Now put a "+" by the bottom terminal. You've specified the polarities. Anyone looking at the circuit now can "find the polarity" of the circuit by inspection. Let's go one step farther. The electrons will be flowing out the top of the battery, and over and down through our resistor. Then they'll flow out the bottom of the resistor and across and into the bottom of the battery. Very simple, very easy. Now focus on this. The polarity of the voltage drop across the resistor is negative on the top and positive on the bottom. The end of the resistor into which current flows is said to be the negative end of the component, and the end out of which the electrons flow is said to be the positive end. Is this clear? Electrons flow out the negative terminal of a battery, and electrons flow into the negative end of our resistor. Be super clear about this. That's the way voltages are labeled in a circuit diagram. (The resistor "drops" voltage, while the battery represents a voltage "rise" in circuits.) For our circuit, the voltage drop across the resistor, which can be though of as the measure of voltage across the resistor, is negative on top and positive on the bottom. If you were going to measure the voltage drop across the resistor, the black meter lead would be on top of that resistor and the red lead would be on the bottom. If anyone encounters the circuit, the polarity will be obvious by inspection. We must be given a voltage somewhere, or we must be given a direction of current flow so we can make our inspection and determine polarity. If we were given nothing about our circuit except the direction of current flow, we'd know the rest by inspection. Take the simple circuit we made and take off all references to polarity. Now draw an arrow parallel to the top line of the circuit, and make it point to the right. If that arrow represents the direction of current flow, it would be telling us current was flowing clockwise around our square circuit. The polarities of all the other components (there are only two) would then be known. We would know by simply looking at the circuit what was happening, know by inspection. [This answer has a couple of simplifications, but not where it makes any difference. The answer was designed to supply fundamental knowledge or introductory information. It is unnecessary to say, for instance, that modern digital multimeters (DMMs) will measure voltage no matter what lead is placed where - the only difference being whether on not the "minus" sign appears on the DMM's display. Save that for later. We're keeping this simple.]


What does a switch do to effect a series circuit?

For an electrical circuit to keep going, it cannot be interrupted. When the switch is adjusted, the electrical flow is interrupted. Move the switch again and the flow is restored. Without a switch a circuit is no longer considered a complete circuit. Simple fifth grade science.


What would be a good way to describe a swordsman in simple terms?

A simple way to describe a swordsman would be by saying that the individual is like a gladiator. The individual is trained to use a sword whether for fighting or for an artistic approach.

Related questions

What happens to current in a simple circuit as potential difference is increased?

depends on the simple circuit. please describe it.


Are negative electrons converted into positive in the light bulb of a simple battery circuit?

No See the related link below.


What scientific term is used to describe the arrangement of a variable resistor and the diode which connect in a series circuit?

There isn't anything "scientific" about this simple series circuit. If you've got a variable resistor (a potentiometer) and a diode in series, you have a simple series circuit with the two components in it.


Describe the planetary model of an atom?

The planetary model of an atom is simple. The nucleus is the planet and the electrons are the moons in the model.


How do circuits with batteries work?

In simple terms: a battery powers a circuit so, if you have a flashlight, it will turn on. Without the battery it would be a dead circuit. Circuits consisting of just one battery and one load resistance are very simple to analyze, and they are often found in practical applications such as flashlights and electric bells. More often, in practice, circuits have more than two components connected together. An electric circuit is an electrical device connected so that it provides one or more complete paths for the movement of charges. There is a closed-loop path for electrons to follow. If the path is not complete (an open circuit) there is no charge low, and therefore no current can flow.


A simple circuit?

A simple circuit is a basic, simple and complete path through which electricity can flow.


What are the parts of a simple electrical circuit?

An electrical circuit is a path which electrons from a voltage or current source flow. Electric current flows in a closed path called an electric circuit. The point where those electrons enter an electrical circuit is called the "source" of electrons. The point where the electrons leave an electrical circuit is called the "return" or "earth ground". The exit point is called the "return" because electrons always end up at the source when they complete the path of an electrical circuit. The part of an electrical circuit that is between the electrons' starting point and the point where they return to the source is called an electrical circuit's "load".Contents[hide] 1 Electrical-circuits2 Electronic circuits3 Circuit-and-wiring-diagrams4 Circuit-breakers5 Ground-fault-interrupt-(GFI)-devices6 Other websites


What products use simple ciruits?

A flashlight does, as does a cheap coffeepot.


What simple machines are in a flashlight?

lever and batterys


A simple model of a circuit?

An electric circuit is a closed loop that allows a flow of electrons to begin from a source of the electrons and return to the same source. Some of the energy carried by the current from the source may or may not be released to perform useful work. Because of the resistance of the materials in the circuit, some of the energy carried by the current is always lost as heat emitted from the circuit into the surrounding environment. The flow of electrons around the closed loop is called an electric current. The source of the electrons must be a chemical battery or a mechanical generator which produces a potential difference, also known as a voltage.


How do you make a simple circuit?

Before constructing a simple circuit we must first have in mind which type of source is to be supplied to the circuit . A simple circuit may consist of the following components such as capacitors, resistors , inductors etc


Why current flows from cathode to anode in the internal circuit of a simple cell?

generally electrons will move towards positive charge and conventionally current flows in opposite direction to it