investigate how the resistance of a wire is affected by the length of the wire. Theory What is resistance? Resistance is a force which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. The circuit itself can resist the flow of particles if the wires are either very thin or very long. e.g. The filament across an electric light bulb. How is it measured? The resistance of a length of wire is calculated by measuring
Premium
resistance of a wire Introduction: Resistance is a force‚ which opposes the flow of an electric current around a circuit. Resistance is measured in Ohms. George Ohm discovered that a circuit sometimes resists the flow of electricity. He called this ’RESISTANCE.’ He even came up with a rule for working out the resistance of a circuit‚ which was: R= V ÷ I V- Volts I- Current R- Resistance Ohms law says the more resistance means more energy is needed for the current to pass through the wire. Resistance
Free Ohm's law Electric current Resistor
Hirschi’s Social Bond Theory Describes D’Angelo Barksdale in The Wire Travis Hirschi’s dissertation‚ which eventually became a well-respected and commonly used book in criminology‚ had within it one of the most influential theories of crime that was tested with data and supported with results. The dissertation became known as Causes of Delinquency and was published in 1969 (Kozey‚ 2012). The general theory states that delinquency takes place when a person’s bonds to society are weakened or broken
Premium Social control theory Sociology Illegal drug trade
Name __________________________ Wire Resistance and Ohm’s Law Go to http://phet.colorado.edu/simulations/sims.php?sim=Ohms_Law and click on Run Now. Wire Resistance and Ohm’s Law Procedure Part I Wire Resistance: open the PhET Simulation Electricity‚ Magnets‚ and Circuits ( Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) _increases________ As wire area (cm2) increases‚ the resistance (Ω) _decreases_________ As wire resistivity (Ωcm) increases‚ the resistance
Premium Incandescent light bulb Volt Electric current
International Money Transfer in Nigeria (Kester Osahenye) Introduction With an estimated 145 million inhabitants (Nigerian Population Census December 2006)‚ Nigeria is unarguably the most populous country in Africa. Since the emergence of the nascent democracy‚ Nigeria now plays a pivotal role in African migrations. As Africa’s economic giant‚ Nigeria has also become increasingly involved in international migration to Europe‚ the US‚ the Gulf countries and South Africa. Yet Nigeria is a source
Premium Foreign exchange market Nigeria Bank
CHAPTER 13: Transfer & Problem Solving Vocabulary * Transfer: When something you learn in one situation affects how you learn or perform in another situation. * Problem Solving: Knowledge and skills you have previously learned to solve a problem. * Positive Transfer: When learning in one situation facilitates learning or performance in another situation. * Negative Transfer: When something learned in one situation hinders a person’s ability to learn or perform in a second situation
Premium Problem solving
A phase transfer catalyst or PTC in chemistry is a catalyst which facilitates the migration of a reactant in a heterogeneous system from one phase into another phase where reaction can take place. Ionic reactants are often soluble in an aqueous phase but insoluble in an organic phase unless the phase transfer catalyst is present. Phase transfer catalysis (also PTC) refers to the acceleration of the reaction by the phase transfer catalyst. Phase transfer catalysts for anion reactants are often
Premium Chemistry Ion Chemical reaction
CHAPTER 13 Investment Centers and Transfer Pricing ANSWERS TO REVIEW QUESTIONS 13-1 Goal congruence means a meshing of objectives‚ in which the managers throughout an organization strive to achieve goals that are consistent with the goals set by top management. Goal congruence is important for organizational success because managers often are unaware of the effects of their decisions on the organization’s other subunits. Also‚ it is natural for people to be more concerned with the performance
Premium Investment Rate of return Income
Cash Transfers to end poverty – Over-ambitious economic policy or a welcome change to eliminate corruption in the Public Distribution System? A study of the benefits of the Cash Transfer scheme to India’s poorest and its economic viability Shrinidhi Rao 210063 Word Count – 3501 [including footnotes] Introduction – From January 1st‚ 2013‚ hundreds of thousands of India’s poor across 20 districts will benefit from the logical end of signing on to
Premium Poverty
In explosive atmospheres and in undersea applications‚ special connectors must be used. This paper describes a technique‚ the contactless energy transfer system (CETS)‚ by which electrical energy may be transmitted‚ without electrical connection or physical contact‚ through nonmagnetic media of low conductivity. The CETS‚ which has been used to transfer up to 5 kW across a 10-mm gap‚ employs high-frequency magnetic coupling and enables plug-in power connections to be made in wet or hazardous environmental
Premium Transformer Electromagnetism Magnetic field