Essays Tagged: "Ohm"
Life of Georg Simon Ohm
Georg Simon OhmAt the time Georg Simon Ohm was born not much was known about electricity, he was out to change t ... why most information about Georg is in German. There is even a College named after him: Georg-Simon-Ohm Fachhochschule Nuernberg. To much dismay not a whole lot has been written about him. Usually you ... n of conduction in circuits modeled after Fourier's study of heat conduction. This is also known as Ohm's Law.Ohm's Law, which is Georg's greatest accomplishment, started as an experiment. The experim ...
Subjects: Science Essays > Physics
Voltage - Current relationship in a DC circuit
ABSTRACT Ohm's Law and Kirchhoff's rules is fundamental for the understanding of dc circuit. This experiment ... d show how these rules can be applied to so simple dc circuits.INTRODUCTION In the theory of Ohm's Law, voltage is simply proportional to current as illustrated in the proportionality, V=RI. As ... electric current, I, will flow. The constant, R, is called the conductor's resistance. Thus by the Ohm's Law, one can determine the resistance R in a DC circuit without measuring it directly provided ...
Subjects: Science Essays > Physics
for this essay I investigated Ohms Law. I investigated the effect that the length and the thickness of wire had on the resistance.
SWG, 26 SWG and 28SWG (with 24 SWG being the thickest wire and 28 SWG being the thinnest).PredictionOhms Law states: "The current flowing through a metal wire is proportional to the potential differen ... you have readings from 5cm - 60cmPre-Test Results TableLENGTHCURRENT IN AMPSVOLTAGE IN VOLTSR=VI IN OHMS50.640.110.17100.670.220.33150.660.320.48200.660.430.65250.660.550.83300.620.610.98350.610.701.1 ...
Subjects: Science Essays > Physics
The Hinduism,legends and customs
ons of this world is the Hindu religion. In Hinduism, everything begins, ends and it is included in ohm , which is a sign representing the trinity of God. Like the Christians, the Hindu God is divided ...
Subjects: Humanities Essays > Religion & Faith > Hinduism
GCSE Physics Coursework - Resistance of a Wire Coursework Resistance of a Wire
= I ¢¥ R where V = Voltage, I = Current and R = ResistanceThis can be rearranged to:R = VIOhm's LawIt is also relevant to know of Ohm's Law, which states that the current through a metallic ... gation but it might have been an issue had we used batteries instead.NB: If one were to assume that Ohm's Law applies, then another possible explanation could be that at some points (more likely in th ...
Subjects: Science Essays > Physics
Resistance in a wire- good essay.
AimInvestigating the factors that affect resistance in a wire.TheoryOhm's law states the V=IR, with 'V' being voltage, 'I' being current and 'R' being resistance. Volta ... levels. A very high resistance allows a small amount of current to flow. Resistance is measured in ohms ( ).HypothesisI think that the longer the wire is, the higher the resistance. This is because t ... red the current and resistance in the wire, in ten centimetre intervals, using an ammeter and using Ohm's law. Like before, we wrapped another piece of nickel chrome wire around to double the thicknes ...
Subjects: Science Essays > Physics
Plan for Science Course Work The Resistance of Lengths of Wire
s of wire and to look for a correlation between the length of the wire and it's resistance.Research:Ohm is the common unit of electrical resistance, equivalent to one volt per ampere and represented b ... by the current, coulombs per second (measured in amps) of the circuit to give me the resistance in ohms. Resistance limits how easily an electric current can flow through a substance.I will be using ...
Subjects: Science Essays > Physics
The Resistance Of A Wire
asurements are then applied to this formula:Gradient = resistanceV = I x RThe other ways of writing Ohm's Law are:R = V/I or I = V/ROhm's LawIt is also relevant to know of Ohm's Law, which states that ... entire investigation is repeated for accuracy.7. Work out the resistance for all the results using Ohm's law. V = I*R8. Record your results in a graph.SafetyIn order to perform a safe experiment, a l ...
Subjects: Science Essays > Physics
Resistors in series and parallel.
of an electric current. The electrical resistance of an electrical component can be found by using Ohm's law. Ohm's law states that the potential difference (voltage) between the ends of a conductor ... 2000, p221-226). This law can be written as: R=V .IThe SI unit used for electrical resistance is an ohm. An electrical device that has an electrical resistance of 1 ohm will cause a current of 1 amp t ...
Subjects: Science Essays > Physics
OHM'S LAW
f this lab is for student's to investigate the relationship between the three variables involved in Ohm's Law- Current, Voltage, and Resistance.Theory: The Ohm's law states that the direct current flo ... the power supply is turned down to zero (fully clockwise). Adjust the decade resistance box to 100 ohms.3) By carefully turning the power supply clockwise with the switch closed measure the voltage a ...
Subjects: Science Essays > Physics
Length affects the resistance
en electrons travelling along the wire collide with the atoms of the wire.The unit of resistance is Ohms and the symbol is:The higher the resistance, the lower the current. If there is high resistance ... voltage (V). I will be using both of these devices in my experiment. Their symbols are shown bellow:Ohm's lawIn 1827, a German physicist discovered relationship that the amount of steady current throu ...
Subjects: Science Essays > Physics
Resistance of Wire
current flow is constant so that the current in the circuit is related to voltage and resistance by Ohm's law.I = V/RThe unit of electric charge is the coulomb. Ordinary matter is made up of atoms whi ... ist the flow of particles if the wires are either very thin or very long. Resistance is measured in Ohms.George Ohm discovered that the voltage of a circuit is directly proportional to the current flo ...
Subjects: Science Essays > Physics
To investigate the factors of affecting the resistance of a wire.
Physics Coursework- Ohm's LawAim: To investigate the factors of affecting the resistance of a wire.In this experiment I ... ble I can also see a trend, where as each width increased the resistance in a proportion of about 2 ohm's. When looking at the graph to show the resistance of different lengths, I can see that there i ... the first set of results for both width and length, but there were some readings off by a couple of ohm's, which could have been accounted from misreading, although I believe I have enough results to ...
Subjects: Science Essays > Physics
Circuit Report
at resists an electric current by producing a voltage drop between its terminals in accordance with Ohm's law.Inductor: An inductor is a passive electrical device employed in electrical circuits for i ... ph Z versus Frequency, f is plotted.Results:f(kHz) VR (volts) VZ (volts) Z (ohm)1 0.848 0.532 62.735852 0.65 0.79 121.53853 ...
Subjects: Science Essays > Physics
An investigation into how the diameter of a wire affects its resistance
themselvesWhen planning my investigation I will be making use of the following scientific knowledge:Ohm's Law: An ohm is a unit used in the international system of measurements to measure resistance. ... hat resistance is inversely proportional to the cross-sectional area of the wire. The symbol for an ohm is the Greek letter omega (?). By definition, an ohm is equal to one volt creating one ampere in ...
Subjects: Science Essays > Physics