# Conducting an experiment showing that the length of wire is proportionate to the resistance

The resistance, r of a conducting wire is directly proportional to the length of the wire, l the hypothesis is accepted the resistance, r of the wire increases with its length, l. This experiment was a fair test because other factors that could affect the resistance in a wire were kept constant such as length, material of wire and temperature of wire the equipment used for experiment was also kept constant, as was the environment for the experiment. How to measure resistance of a piece of wire they are designed to conduct some time ago i made an experiment putting a 220v pair wire into salted tap water . The conducting ability of a this equation shows that the resistance of a wire is directly proportional to the length of the wire and inversely proportional to the .

Extended experimental investigation: electricity modify your experiment if necessary gather, relationship between length and resistance copper wire of . Wire resistance calculator & table quick calculator wire length (feet) gauge (awg) wire resistance: ___ ohms (results are rounded to the wire resistance % wire . 3 students should come to understand that the resistance of a wire depends on its length, its cross sectional area, and the material out of which it is made with some students you could go further and introduce the concept of resistivity ρ, through the relationship r = ρ l / a where r = resistance, ρ = resistivity, l = length and a = cross . From the formula for resistance, r = where ρ is the resistivity constant, l is the length of the wire and a is the cross-sectional area of the wire, we can see that resistance, r, is directly proportional to distance.

Showing step-by-step of a wire conductor for this experiment, between resistance and length of a conducting wire described in equation 1 therefore,. An investigation into the resistance of a wire i have done a preliminary experiment to help me decide the best way to do my investigation these results show . Any conducting wire has a resistance associated with it and the resistivity of the material is directly proportional to the length of the wire and inversely proportional to the area of the cross section of the wire. Preet kaur: physics report- resistance myp5 ib and the length of the wire is directly proportional to each other i do a physics experiment regarding .

The resistance graph shows that the resistance of the wire is directly proportional to the length of the wire it shows one very clear trend and pattern: as the length of the wire increases so does the resistance of it. Episode 112: resistivity students learn how and why the resistance of a wire depends on the wire’s dimensions resistance is proportional to length l . Physics experiments record the resistance of the coil of wire using the ohmmeter rheostat, voltmeter, ammeter, length of nichrome wire v a + 6 v - nichrome. This uses an ohmmeter to measure the resistance of a wire directly by varying the length of the wire, and taking sets of data across several thicknesses we can get to a value for the resistivity . Relate (without calculation) the resistance of a wire to its length and to its diameter as the length of the conducting wire increases, the resistance of the current flowing increases resistance and length of a wire are directly proportional.

Resistance is proportional to length and inversely proportional to cross sectional area formulae and calculations resistance in conductors what you´ll learn . Resistivity objective the resistivity is a parameter of a material showing its capability to conduct electric current if a piece of wire of length and . I did an experiment to investigate how current varied with changing resistance and plotted my results on a graph of 1/current against resistancethe graph is a straight line showing $1/i$ to be dir. Physics 111 laboratory experiment #3 true for many things that conduct current but not for everything should take care not to wire the voltmeter in series .

## Conducting an experiment showing that the length of wire is proportionate to the resistance

There are four factors that affect the resistance of a wire: resistance is proportional to length if you take a wire of different lengths and give each a particular potential difference across its ends. I have heard that resistance is directly proportional to length and inversely proportional to area of cross-section and to show you relevant ads and job listings . Where r is resistance in ohms, l is the length of the wire in meters, a is the cross sectional area of the wire in square meters, and ρ is the electrical resistivity in ohm-meters in this experiment you will be able to find the resistivity and conductivity of the materials you test by using ohm .

- Episode 112: resistivity in this episode, students learn how and why the resistance of a wire depends on the wire’s dimensions they learn the definition of resistivity and use it in calculations.
- Why does the thickness of a wire affect resistance events encountered by an electron passing through a material is proportional to the length of the conductor .
- Electrons slow down as they travel through a wire because they hit the fixed atoms of the conducting metal in an occurrence called resistance the longer the wire, the fewer electrons are able to reach the end of it when electricity flows through a wire, its electrons must move past the individual .

This is not a straight line showing constant resistance, but rather a curve showing that the resistance of the wire increases with temperature 2 when the experiment is repeated with the coil in a water bath so that its temperature remains constant, the characteristic graph is a straight line, showing that the resistance remains constant. Let's take another length of wire of the same size and connect it in parallel to the 1st wire and apply 100 volts total current will equal 2 amps because we cut the resistance to 1/2 or 50 ohms remember the formula for resistors in parallel. How the length of a wire affects its resistance in conducting my experiment using a copper wire because i would not really be able to compare the results .