# How the length of a wire affects the resistance. How does the length of the wire affect the resistance Archives 2022-10-26

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Resistance is the measure of how difficult it is for electricity to flow through a material. When electricity flows through a wire, it encounters resistance, which can cause the wire to heat up. The length of a wire can significantly affect its resistance.

As the length of a wire increases, the resistance also increases. This is because the longer the wire, the more resistance it will have to the flow of electricity. The longer the wire, the more atoms there are for the electrons to collide with, which increases the number of obstacles that the electrons must overcome. The more obstacles there are, the more difficult it is for the electricity to flow, which increases the resistance of the wire.

The relationship between the length of a wire and its resistance is known as Ohm's Law. According to Ohm's Law, the resistance of a wire is directly proportional to its length. This means that if the length of a wire is doubled, the resistance will also double. If the length of a wire is halved, the resistance will be halved.

The material that a wire is made of can also affect its resistance. Different materials have different resistivities, which is a measure of their resistance to the flow of electricity. Some materials, such as copper and aluminum, have low resistivities, which means they have low resistance to the flow of electricity. Other materials, such as steel and iron, have high resistivities, which means they have high resistance to the flow of electricity.

The thickness of a wire, also known as its cross-sectional area, can also affect its resistance. A wire with a larger cross-sectional area will have a lower resistance than a wire with a smaller cross-sectional area. This is because a wire with a larger cross-sectional area has more space for the electrons to flow through, which makes it easier for the electricity to pass through the wire.

In conclusion, the length of a wire plays a significant role in determining its resistance. As the length of a wire increases, the resistance also increases. The material and cross-sectional area of a wire can also affect its resistance. Understanding these factors can be useful in designing and selecting appropriate wires for different electrical applications.

## If a wire of resistance R is stretched to double of its length, then new resistance will be :

Obtaining Results Below are the results of how wire affects the resistance. Resistance is measured in ohms. Of the pattern does not show up then the experiment that is being carried out is wrong. Step 9: Divide the voltage 2V by the average results in Step 8 to find the. Lastly, I used Ohms law to calculate for the values of current I2 and I3 and they were within tolerance of the calculated Resistance and Length of a Wire Resistance and Length of a Wire I will test different lengths and areas of wire and observe and record the resistance.

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## How Does the Length of a Wire Affect Its Resistance?

How does the Type of Material Affect Resistance Experiment Hypothesis: For a fixed length and thickness of a conducting wire used, its resistance is affected by the type of material. However I will plan it out first to show each step of how I started, and then go into detail about the results and what the investigation on a whole has showed me. The dependant variable will be the resistance because it will change only due to the length of wire. Essay Example How does Length affect resistance? Test 1 Length Current Voltage Resistance Resistance x 100 100cm 1. As the length of wire increases, the voltage increases but after 25cm, the voltage stays at 2v. How does boiling a kettle affect your electricity bill? This also happens across a length of wire, which means therefore, that electricity is conducted.

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## How the length of nichrome wire affects the resistance

The longer the wire, the more resistance that there will be. What is the definition of resistance in physics? For this investigation, I believe that altering the length of the wire throughout the experiment will be the best method. I recorded the current and the voltage for 10cm of wire from the voltmeter and ammeter. Aim: The aim of this investigation is to find out how the length of a wire affects its resistance in a circuit. As electrons flow through the wire, they are attracted by the nuclei.

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## How The Length Of A Wire Affects The Resistance Free Essay Example

Some metals are just more electrically conductive than others. My graph also supports this, as it is a strong positive correlation as one variable increases, the other variable also increases. This means that they need only a tiny amount of energy in order to allow the electron to move. This is measured in how many electrons per second or the charge they are carrying go round the circuit amps or amperes Voltage or Potential Difference measures how much energy individual electrons have to use up as they go around a circuit. I could have also changed such aspects as mentioned in the fair test section, such as changing the temperature to find out also if temperature in any way affects the resistance.

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## Investigating how the length of wire affects the resistance

The hypothesis is accepted. However Ohms Law only applies providing the Circuit 3 4. What makes an extension cord carry more power? Although all metals are conductors, some have a higher resistance than the other. Define resistance and describe what would happen to a light bulb if the voltage increased but the resistance stayed the same. By doing this experiment, I found out how current, voltage and resistance are related.

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## How does the length of a wire affect its resistance?

By varying the length I Scientific knowledge 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. To find out the RESISTANCE, we have to divide the voltage by current. Why does the size of an electrical cord matter? The length of the wire will be changed by moving the crocodile clip across the wire on a ruler. In this investigation, I will set up a simple circuit to be able to read the voltage and current when the length of wire changes, so I then can work out the resistance. The more likely explanation would be that the first wire was actually of a larger diameter than the second one. Second, the cross-sectional area of the wires will affect the amount of resistance. Not all materials are created equal in terms of their conductive ability.

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## Investigating How the Length of the Wire Affects the...

Prediction- I predict that the longer the length of the wire the higher the resistance because, the longer the wire the more ions it will have, so theoretically there are more opportunities for the free moving electrons to collide with the ion. The conducting ability of a material is often indicated by its resistivity. The brighter the bulb, the higher its temperature. How Does The Length Of Wire Affect Its Resistance Physics GCSE coursework: Resistance of wire Aim: To investigate if the length of wire affects its resistance. OBJECTIVE For this piece of coursework I have been asked to investigate into the resistance of wires when the length is changed. Variable resistor- if reading of voltmeter beyond range adjusted. This is because they all have only one electron on the outer shell.

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## How Does The Length Of Wire Affect Its Resistance

Step 3: I switched on power supply to 2V. The only other factor that will affect the wire is the temperature, the reason being because I have worked with it if the electricity is left for a long time on. This is because the Resistance in a metal conductor happens Premium Electronic engineering Digital signal processing Integrated circuit Resistance of a Wire Investigation Preliminary Investigation: Aim: To investigate the main problems with my main experiment and to see how to resolve these. Then I will draw a table and plot a graph to show the results. I was working with a company in Israel in 2000 and they were developing new technologies with PCBs. Therefore the resistance is low when there is less wire. The greater the resistance the harder it is for the current to flow and the move energy that is converted to heat and light.

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## How does thickness or length of a wire affect the resistance of that wire?

The symbol for an ohm is Ω Here is the rule for working out the Premium The Affects of the Resistance of a Piece of Wire investigate what affects the resistance of a piece of wire. First I will need to identify the factors that effect resistance. Background Information: What is an electrical current When a full circuit is created i. Varying the resistance in the circuit can control the current through a circuit. This is because the current will have more wire to pass through so the resistance will be high, whereas when there is less wire, the current can flow through easier, having a lower resistance.

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