Establishing the Current-Voltage Relationship For a Metal Conductor

1513 Words4 Pages
bulb-icon

Recommended: What are the factors that affect voltage in wire

Establishing the Current-Voltage Relationship For a Metal Conductor

Investigation- To Establish The Current- Voltage Relationship For A

Metal Conductor.

In this experiment I will be investigating the current- voltage

relationship for a metal conductor.

The variables that I need to keep constant in this experiment are:

1. Thickness of the wire.

2. Length of the wire

3. Input of voltage coming from the power supply should be kept

constant.

4. Temperature of wire should be kept constant.

Firstly if the constantan wire was increased then the resistance will

be less. Thin wires have more resistance than thick wires. Secondly if

the length of the wire got longer then the resistance is greater than

a short wire. Thirdly if resistance increases and the wire heats up

the straight line on the graph I'm going to plot later on in the

project won't be a straight line thus the resistance will shoot up.

Fourthly if the amount of voltage output was 2V this would be a lot

better than 12 V due to some side effects: the temperature will

increase thus causing the constantan wire to heat up and you will have

to keep on cooling it down by turning off the power. Therefore 2 and 4

Volts are better than 6, 8, 10 and 12V.

We use constantan wire instead of copper because copper is too good a

conductor of electricity so the wire will heat up too quickly even if

we put it on the lowest out put of voltage possible. Resistance will

also be very low- difficult to measure. In this experiment we use the

resistance.

First we had to find the resistance by using the formula:

Resistance = Voltage

Current

An atom consists of a nucleus and orbiting electrons. These electrons

can create a flow of current, so the more free electrons there are,

the more conducting capability that material has; thus copper is more

conductive that iron. Alloys tend to have less free electrons so they

will be less conductive.

Show More
Related

  • Evaporator Coil Causing Cold Air

    434 Words  | 1 Pages

    Since the evaporator coil is responsible for making the air in the system cool, it’s an incredibly important part that must always be in working condition. It’s job is to turn the coolant in the unit to a gas form, which then cools down the coil. When warm air passes over this coil, it becomes chilled before passing through all the vents in your home.

    Read More

  • Investigation Into the Resistivity of a Wire

    1884 Words  | 4 Pages

    I also decided to use a wooden block to keep hold of the wire, because

    Read More

  • Nt1310 Unit 4 Lab Report

    612 Words  | 2 Pages

    4. Fourth Stage[t3-t4](Fig.10) : At time t3, CM finished energy get transfer at that instant the diode D1 is blocked. The energy transfer to output maintain till t4 till power switch is turn on.

    Read More

  • Absorption Refrigeration Cycle Essay

    1243 Words  | 3 Pages

    [Randel (1932) investigated an NH3/H2O absorption refrigeration cycle employing the principle of supplementary agent for pressure equalization in the evaporator (Qué es? Not Clear). In this case the supplementary agent does not circulate with the cooling agent (What is the cooling agent? Write with your own words. Don’t try to copy full sentences) [Improve the writing style of this part]. The heat of absorption is utilized in the desorber to reduce the heat input [how?]. As shown in Figure 5, the major components of the cycle are the same as those ...

    Read More

  • Making an Electric Current in a Wire

    399 Words  | 1 Pages

    You can make an electric current in a wire if a wire is at right

    Read More

  • Ohm's Law

    976 Words  | 2 Pages

    6. Repeat steps 4, and 5 until at least five 8 sets of readings have

    Read More

  • Refrigeration Cycle Essay

    9854 Words  | 20 Pages

    In thermodynamics Refrigeration is the major application area, in which the heat is transferred from a lower temperature region to a higher temperature region. The devices which produce refrigeration are known as Refrigerators and the cycle on which it operates are called refrigeration cycles. Vapour compression refrigeration cycle is the most regularly used refrigeration cycle in which the refrigerant is alternately vaporized and condensed and in the vapor phase it is compressed. Gas refrigeration cycle is the well-known refrigeration cycle in which cycle refrigerant remains in the gaseous phase throughout the cycle. Cascade refrigeration are the other refrigeration cycles discussed in this chapter; absorption refrigeration is the one more refrigeration cycle which is used where the refrigerant is dissolved in liquid before it is compressed. One more refrigeration in which refrigeration is produced by passing the electric current through two dissimilar materials is called as the thermoelectric refrigeration.

    Read More

  • Refrigeration

    646 Words  | 2 Pages

    Refrigeration Refrigeration is defined as “The process of removing heat from an enclosed space, or from a substance, to lower its pressure.” (First website given in bibliography) In simpler terms, it is removing heat from states of matter in order to keep them cooler. The basic need for refrigeration is to cool food and beverages, as they often get spoilt if the temperature is high. Before actual refrigerators and other such mechanical systems were introduced, it was very common for people to cool their food with ice and snow.

    Read More

  • The Relationship Between Length, Width and Resistance of a Wire

    2113 Words  | 5 Pages

    The Relationship Between Length, Width and Resistance of a Wire Aim: To investigate how the length and width of a wire affects the resistance of the wires. What is the resistance to a s Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. gold has less resistance to the sand. For example, gold has more free electrons than. iron and, as a result, it is a better conductor.

    Read More

  • Ohm's Law: Electrical Conductivity and Resistence

    936 Words  | 2 Pages

    Numerous factors influence electrical conductivity and resistance, two of them are temperature and length of the wire (these are external factors). Electrical conductivity is defined as the property used to describe how well materials allow electrons to flow, and the degree to which a specific material conducts electricity., Electrical conductivity is calculated as the ratio of the current density in the material to the electric field that causes the flow of current. The SI unit of electrical conductivity is Siemens per meter (S/m). Electrical conductivity is also commonly represented by the Greek letter σ (sigma), but κ (kappa) (especially in electrical engineering) or γ (gamma) are alsowhich are occasionally used. Electrical resistivity quantifies how strongly a specific material opposes the flow of electric current. Electrical resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m) although other units like ohm⋅centimetre (Ω⋅cm) are also in use.

    Read More

  • Vapour Compression Cycle Advantages And Disadvantages

    906 Words  | 2 Pages

    The VC cycle operates with the help of refrigerants which absorb and release heat at different parts. The evaporator absorbs the heat from the conditioned space thereby converting the liquid refrigerant inside the evaporator to vapour, this low pressure high temperature vapour is sent to the compressor where the vapour is compressed with the supply of external power. The high pressure high temperature compressed vapour leaves the compressor and enters the condenser chamber where the heat is forced to the surroundings thereby the vapour taking a phase change from vapour to liquid. The high pressure low temperature liquid leaves the condenser and enters the expansion valve where the pressure reduced and the low pressure low temperature liquid enters the evaporator, thereby continuing the

    Read More

  • Characteristics Of The Conductor As A Conductor

    1328 Words  | 3 Pages

    The article in its main concept is a very philosophical and could be relevant to the different spheres of our lifes. It explicates the Servant Leadership philosophy and its appliance for the Conductor as a Leader. The article outlines some characteristics of the great leader and the way on how to become a great leader/Conductor.

    Read More

  • Effects Of Compression Refrigeration

    743 Words  | 2 Pages

    In order to accomplish this some input of energy is needed. The two major methods of refrigeration in use today are the vapour compression cycle and the slightly less common absorption refrigeration cycle. Vapour compression refrigerators are most common in residential and commercial refrigeration systems. This refrigeration system takes mechanical work as an input via a compressor to extract heat from a cold environment and expel it to ambient. The basis of the cycle is compression of a vapour refrigerant into a superheated state via mechanical work, condensing the vapour by expelling heat to ambient, throttling the vapour to a cold saturated mixture, and externally absorbing heat from a refrigerated space. Absorption chillers take heat as an input to accomplish the same task. In this case the refrigerant is typically ammonia or lithium bromide. The cycle is similar, but in place of a mechanical compressor there is a thermal compressor which absorbs heat as energy and requires very little mechanical work as an

    Read More

  • The Conservation of Coral Reefs

    440 Words  | 1 Pages

    slow down the depletion of the ozone layer by taking carbon dioxide out of the air.

    Read More

  • Argumentative Essay On Global Warming

    1579 Words  | 4 Pages

    ...tarts producing more heat than the cooling system is able to cool, the entire power system can fail.

    Read More

More about Establishing the Current-Voltage Relationship For a Metal Conductor

Open Document