Ohm 's Law Is The Most Fundamental Rule Of Circuits

Moreover, the demonstration in the article “Energy Story” was, the example shown in the article of what an atom is made up of was very detailed it showed electrons spinning around the nucleus, of atoms, in the same way the moon spins around the earth. Furthermore, the demonstration in “Conducting Solutions” the experiment that the article wrote was astonishing. The articles experiment contained water and salt and it explained how when a table of salt in water would dissolve only because the solution conducts very well because the solution contains ions and the ions come from the table of salt. Nevertheless, the clip ““Hands-On Science with Squishy Circuits” experiment that was shown was she was showing with homemade playdough created an example on how to create a circuit through play dough. Ms. Thomas was also talking about how if you put two pieces of sugar dough it has one hundred and fifty times more resistance than the salt dough she used. If you put a piece of salt dough in the middle than that’s when the led would work because to resistance substances won’t make it work but the one that has less resistance

As the voltage slider moves to the right, the current flows counter-clockwise going towards the right. The speed of the current increases as the voltage increases.

Ben Franklin was a very curious and inventive thinker. He kept thinking about different ways to experiment with electricity so he came up with an experiment with only a few materials (wire,mobile kite, handkerchief,and two sticks).(”Benjamin Franklin and Electricity”) Franklin

What are some of the basic components that make up simple circuits and what do they do?

In static electricity the charges do not flow continually, because some of the charges of an object are being stripped from the other. This makes Static electricity mainly based on insulators because the charges are not released, but stay in one spot.

Having demonstrated the concept of LED stumps, the next step was to focus on the LED bails. Whenever, a bail is completely dislodged (i.e., the spigots come out of the stump grooves), an LED should glow. For this, the part of spigot that rests on the stump grooves is lined with copper and is connected to a battery through a relay. The stump grooves are also lined with copper. Whenever the spigot rested on the stump groove, both the copper lines were in contact making the circuit complete and the relay is made to be in OFF position. So, the supply from the battery is not provided to the LED through the relay. Whenever, the spigots are not in contact with the stump grooves, the copper linings are not in contact and hence the relay is switched ON. This allows voltage supply to the LEDs from the battery and hence the bails glow. The schematic representation is shown in Figure 8.

In Lab 8, the time constant of resistance-capacitance was measured in order to determine the charge of a capacitor. This experiment was conducted by setting building a circuit that connects the voltmeter across the resistor. The voltmeter was then connected across the capacitor. The above procedure was conducted several times using different voltages. Afterwards, the results were calculated and tabulated. The data obtained from the lab were the theoretical Tau for 5V, 4V and 3V. In this experiment, the calculated voltage was also determined. The theoretical and the calculated values were then compared and evaluated by determining their percentage errors. For example, in the 5V, the theoretical value was 1.23V; calculated value was 1.434 with a percentage error of 16.6 %( for voltmeter across capacitor).

\emph{Testing Strategy:} The graph between applied load in the range 0.5 grams to 575.5 grams and change in voltage is plotted. The graph obtained (see Figure~\ref{f:olggraph}) shows the inconsistent readings at many points for different combination of force applied. Also, the best curve equation is close to cubic, which is indication of bad design.\\*

Introduction: Voltage can be thought of as the pressure pushing charges along a conductor, while the electrical resistance of a conductor is a measure of how difficult it is to push the charges along. Using the flow analogy, electrical resistance is similar to friction. For water flowing through a pipe, a long narrow pipe provides more resistance to the flow than does a short fat pipe. The same applies for flowing currents: long thin wires provide more resistance than do short thick wires. The resistance (R) of a material depends on its length, cross-sectional area, and the resistivity (the Greek letter rho), a number that depends on the material. The resistivity

The two types of electrical circuits are series and parallel. Series circuits provide only one pathway of current flow, while parallel circuits provide multiple pathways of current flow. Unfortunately,

2. Try increasing the resistivity of the resistor, ρ. How does this change the “look” of the resistor? Describe how that relates to the formula you just wrote (direct, indirect relationships, etc.). What happens to the value of “R” (Resistance)? Is this something that can be changed in a resistor that you would buy in a store to use in a circuit?

The diagram below shows a labelled circuit which is used for the experiment. This is set up by collecting all equipment needed and attaching the DC power supply to the ammeter with a wire this is all connected to the anode and cathode with a red and black wire to differentiate between the two electrodes. The two electrodes are shown to be placed in a beaker of copper sulphate

Theoretical analysis is one of the most significant phases of the project. The high resistance measurement system developed during this project is primarily based

Throughout this research paper, the reader will have a better understanding of the different forms of resistance. Also the reader will have the ability to compare the two types of resistance which were active and passive. And finally the reader will be abl

The outer shell of electrons that orbit the nucleus of an atom is called the valance shell. This is what makes a copper atom conduct. For a copper atom the number of electrons is one. When a charge of electricity is placed in the end of a wire the electrons move into the wire. Since there is only one electron in the valance shell of a copper atom it can be easily dislodged with a small amount of energy causing it to jump to the next atom. This will then cause the valance electron of that atom to jump to the next atom and so forth. This movement happens very fast making it possible for a large number of electrons to move through the wire. An example of a conductive atom is shown figure 1.