Essays Tagged: "cross sectional area"
Resitances of a wire:it is about how length effects the resistance of a wire.
stance in a wirePlanning -The resistance of a wire can be affected by certain factors:Length of wireCross sectional arearesistivity (type of metal)Type of wireTemperatureI chose to investigate how len ... f wire, the same material of wire (a preliminary experiment will help determine this), and the same cross sectional area and maintain a constant temperature of the wire as any increase in temperature ...
Subjects: Science Essays > Physics
Plan for Science Course Work The Resistance of Lengths of Wire
. The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area. Resistance also depends on the material of the conductor. The resistance of a ... the overall effect of measuring the potential difference of the whole circuit instead of just that across my wire I have to use what results I have. Unfortunately no one else in the class carried out ...
Subjects: Science Essays > Physics
Resistance of a Wire
volts and "I" is current inamperes.L:- Is the length of the nichrome wire used in metres.A:- Is the cross-sectional area of the wire in metres square and can be determined using the equation A= ??d2 w ... hrough the origin where "m" is the gradient of the st. line graph and corresponds to ?/A. Since the cross-sectional area of the wire can be found by knowing it´s diameter. Therefore the resistiv ...
Subjects: Science Essays > Biology
Restistance of Nichrome wire
scovered that the current flowing through a metal wire is proportional to the potentail difference across it, it basically means if you double the potential difference you double the current. The thin ... d to push a current through the wire, the resistance of a wire is calculated by:Resistance, R= p.d across the wire(V) /current through the wire(I)Their are four factors affecting resistance they are:1 ...
Subjects: Science Essays
Physics Coursework Theory - The resistance of a wire.
Theory behind my experimentThickness (cross sectional area of the wire), length, and temperature all have some effect on the amount of res ... than others. As long as I use the same type of metal for each wire, my experiment will remain fair.Cross Sectional AreaThe thicker the wire, the less resistant it is. This is because there are more e ...
Subjects: Science Essays > Physics
Length affects the resistance
mperature at which wire is at* The material of which wire is made out of* The potential difference across circuit* Cross sectional areaThese must be kept constant (except the length of the wire). The ... packed together, the electrons will have more collisions and therefore more resistance.4) Diameter/Cross sectional area A good example to illustrate this where two cars are traveling down a dual lane ...
Subjects: Science Essays > Physics
Was Aristotle The First Physicist?
er, such as free fall. Aristotle stated that the terminal velocity is inversely proportional to the cross-sectional area, instead of the radius. And in place of the coefficient of viscosity, he used t ...
Subjects: Humanities Essays > Philosophy > Classical Philosophy
Reynolds Experiment
efined if the volume flow rate Q was measured by capturing the flow in a bucket, and divided by the cross-sectional area of the pipe, A. In the first fluid flow rate in the downstream direction, the d ... g. 2.3a) is characterized by the absence of lateral or macroscopic mixing of adjacent fluid layers, cross currents nor eddies or swirls. The particles of the fluid are moving in definite and observabl ...
Subjects: Science Essays > Engineering > Chemical Engineering
Conductivity
;, which is dependent on the nature of the conductor, L is the conductor’s length and A is its cross-sectional area.It is often more convenient to work with conductivity rather with resistivity. ...
Subjects: Science Essays > Chemistry