An Investigation into Electrical Resistance
Resistance, in electricity, is a property of any object or substance to resist the flow of an electrical current. The quantity of resistance in an electric circuit determines the amount of current flowing in the circuit for any given voltage applied to the circuit. The resistance of an object is determined by the nature of the substance of which it is composed, its resistivity, accounting for its dimensions and its temperature. Resistivity is expressed in terms of Ohms / cm3 at 20ºC. An electrical conductor is any material that offers little resistance to the flow of an electric current. The difference between a conductor and an insulator, which is a poor conductor of electricity, is one of degree rather than kind, because all substances conduct electricity to some extent. A good conductor of electricity, such as silver or copper, may have a conductivity billions of times as great, or more, as the conductivity of a good insulator, such as glass or mica.We were set the task of investigating the factors that come into play when determining the resistance of a piece of wire. We would be provided with the necessary apparatus needed to carry out the investigations. The basic setup would inv
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Some common words found in the essay are:
Knowledge Resistance, R1 R2, Charles Wheatstone, Thickness Wire, Temperature Increasing, Alternative Method, wire twice, wire , wire twice length, wire twice thick, resistance wire, thickness wire, initial wire, collisions electrons, length wire, wire wire, twice thick, potential difference, connected parallel wire, r1 r2 written, voltmeter connected parallel,
Approximate Word count = 1175
Approximate Pages = 5 (250 words per page double spaced)
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