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# How does the length of a wire effect it&amp;#146;s resistance.

Extracts from this document...

Introduction

Ross Horn

How Does the Length of a Wire Effect It’s Resistance

Hypothesis

I think that the length of a wire will affect its resistance. I think that the longer the wire the more resistance it will have and the shorter the wire the smaller the resistance. I think this because the electrons will be slowed down more by having to go through more electrons to get round the circuit.

Apparatus

• One Meter Ruler
• Voltmeter
• Ammeter
• Crocodile Clips
• Power Pack
• Un-insulated wire

Fair Test

To make this a fair test I will use the same power pack, voltmeter and ammeter. Also I will use the same un-insulated wire in all the recordings of the results. I will use the same crocodile clips as well. Also I will make sure the wire doesn’t overheat which affects the resistance.

Method

• I will setup the apparatus as shown below in the diagram

• I will then place the crocodile clip at 600mm on the un-insulated wire
• Then I will turn on the power pack to a set voltage
• Then I will record the volts, shown on the voltmeter and the amps, shown on the ammeter, onto a table of results
• Then I will decrease the voltage by a set amount then record the volts and amps of that circuit then repeat this step again so I have three sets of results
• I will repeat the last four steps for these lengths of wire. 500mm, 400mm, 300mm, 200mm and 100mm.
• I will then record my results in neat and work out the resistance for each set of results (totalling 18 sets of voltage and current) by using the R=V÷I formula
• Then, using the resistance I worked out, I will find the average resistance for each length of wire

Middle

As you can see, in this thinner wire, the protons and electrons are closer together making them collide more and increase the resistance of the wire. What a wire is made of will affect its resistance. Since plastic is an insulator it’s resistance is very high. This would not make a good wire because of its high resistance. Copper is a conductor and will let electricity flow through it very easily; this is because it has a low resistance. Also the temperature of a wire makes a difference to how high or low a wires resistance is. If the wire is hot its resistance increases. If a wires temperature decreases then its resistance will as well.

Results

To present my finding I have decided to show them in two forms.

Conclusion

Further work I could do for this investigating would be how the width of a wire affects the resistance. I wrote a few sentences on it earlier but and investigation on it would be more work I could do on this investigation. Also what the wire is made of can affect its resistance so I could plan an investigation on how different metals and materials have a different resistance. Also heating or cooling down a wire can increase and decrease that wires resistance. I have written some information on all these three earlier and can serve as a simple hypothesis for these three new investigations

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism section.

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# Related GCSE Electricity and Magnetism essays

1. ## How does length and width affect resistance

My hypothesis was correct. This is because there are electrons in a circuit. These electrons travel around the circuit at an even pace. When they come to the wire I placed in the circuit the electrons have to slow down in order to be able to pass through it.

2. ## To investigate how the length (mm) and the cross-sectional (mm2) area of a wire ...

I believe that my results contained very few anomalies because my method was accurately planned in order to minimise the errors. Since my method involved repeating the experiment for each length three times, any anomalies were clearly exposed, because each repetition should theoretically produce exactly the same results.

1. ## Resistance and Wires

To expand this experiment, a similar test could be done, however with different ranges of voltage. This would enable me to analyze how the voltage changes resistance, in wires with various diameters To manipulate this data it is possible to record how much resistance is loosed between different ranges of diameter.

2. ## Investigating The Effect Of Resistance On A Capacitor Circuit

0 0 0 0.014 0.155 75 0 0 0 0.014 0.148 75.5 0 0 0 0.014 0.148 76 0 0 0 0.014 0.141 76.5 0 0 0 0.014 0.141 77 0 0 0 0.014 0.141 77.5 0 0 0 0.014 0.141 78 0 0 0 0.014 0.134 78.5 0 0

1. ## The effect of the length of a piece of wire on it&amp;amp;#146;s resistance

I will try the experiment using lengths from 100cm to 10 cm and 4 volts on the power pack. Preliminary experiment results Length (cm) Voltage (V) Current (A) Resistance (?) 100 1.8 0.43 4.186046512 90 1.9 0.45 4.222222222 80 1.9 0.52 3.653846154 70 1.9 0.53 3.58490566 60 1.6 0.66 2.424242424

2. ## To see how the length of a wire will effect it&amp;amp;#146;s resistance.

In my prediction I said that if the length increases than the resistance will also increase in proportion to the length. From my graph I have shown that my prediction was correct, as the Line of Best Fit is a straight line proving that the resistance of the wire is proportional to the length of the wire.

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The text passage is a student's lab report on an experiment investigating how the length of a wire affects its resistance. It includes an introduction, hypothesis, apparatus list, method, results, and conclusion.
no_question

the passage does not contain any explicit mathematical questions or calculations. while it discusses the concept of resistance and mentions using a formula (r=v÷i) to calculate resistance, it does not actually show any specific calculations or ask any math questions. the text is primarily descriptive of the experiment and its results.
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
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# How does the length of a wire effect it&amp;#146;s resistance.

Extracts from this document...

Introduction

Ross Horn

How Does the Length of a Wire Effect It’s Resistance

Hypothesis

I think that the length of a wire will affect its resistance. I think that the longer the wire the more resistance it will have and the shorter the wire the smaller the resistance. I think this because the electrons will be slowed down more by having to go through more electrons to get round the circuit.

Apparatus

• One Meter Ruler
• Voltmeter
• Ammeter
• Crocodile Clips
• Power Pack
• Un-insulated wire

Fair Test

To make this a fair test I will use the same power pack, voltmeter and ammeter. Also I will use the same un-insulated wire in all the recordings of the results. I will use the same crocodile clips as well. Also I will make sure the wire doesn’t overheat which affects the resistance.

Method

• I will setup the apparatus as shown below in the diagram

• I will then place the crocodile clip at 600mm on the un-insulated wire
• Then I will turn on the power pack to a set voltage
• Then I will record the volts, shown on the voltmeter and the amps, shown on the ammeter, onto a table of results
• Then I will decrease the voltage by a set amount then record the volts and amps of that circuit then repeat this step again so I have three sets of results
• I will repeat the last four steps for these lengths of wire. 500mm, 400mm, 300mm, 200mm and 100mm.
• I will then record my results in neat and work out the resistance for each set of results (totalling 18 sets of voltage and current) by using the R=V÷I formula
• Then, using the resistance I worked out, I will find the average resistance for each length of wire

Middle

As you can see, in this thinner wire, the protons and electrons are closer together making them collide more and increase the resistance of the wire. What a wire is made of will affect its resistance. Since plastic is an insulator it’s resistance is very high. This would not make a good wire because of its high resistance. Copper is a conductor and will let electricity flow through it very easily; this is because it has a low resistance. Also the temperature of a wire makes a difference to how high or low a wires resistance is. If the wire is hot its resistance increases. If a wires temperature decreases then its resistance will as well.

Results

To present my finding I have decided to show them in two forms.

Conclusion

Further work I could do for this investigating would be how the width of a wire affects the resistance. I wrote a few sentences on it earlier but and investigation on it would be more work I could do on this investigation. Also what the wire is made of can affect its resistance so I could plan an investigation on how different metals and materials have a different resistance. Also heating or cooling down a wire can increase and decrease that wires resistance. I have written some information on all these three earlier and can serve as a simple hypothesis for these three new investigations

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related GCSE Electricity and Magnetism essays

1. ## How does length and width affect resistance

My hypothesis was correct. This is because there are electrons in a circuit. These electrons travel around the circuit at an even pace. When they come to the wire I placed in the circuit the electrons have to slow down in order to be able to pass through it.

2. ## To investigate how the length (mm) and the cross-sectional (mm2) area of a wire ...

I believe that my results contained very few anomalies because my method was accurately planned in order to minimise the errors. Since my method involved repeating the experiment for each length three times, any anomalies were clearly exposed, because each repetition should theoretically produce exactly the same results.

1. ## Resistance and Wires

To expand this experiment, a similar test could be done, however with different ranges of voltage. This would enable me to analyze how the voltage changes resistance, in wires with various diameters To manipulate this data it is possible to record how much resistance is loosed between different ranges of diameter.

2. ## Investigating The Effect Of Resistance On A Capacitor Circuit

0 0 0 0.014 0.155 75 0 0 0 0.014 0.148 75.5 0 0 0 0.014 0.148 76 0 0 0 0.014 0.141 76.5 0 0 0 0.014 0.141 77 0 0 0 0.014 0.141 77.5 0 0 0 0.014 0.141 78 0 0 0 0.014 0.134 78.5 0 0

1. ## The effect of the length of a piece of wire on it&amp;amp;#146;s resistance

I will try the experiment using lengths from 100cm to 10 cm and 4 volts on the power pack. Preliminary experiment results Length (cm) Voltage (V) Current (A) Resistance (?) 100 1.8 0.43 4.186046512 90 1.9 0.45 4.222222222 80 1.9 0.52 3.653846154 70 1.9 0.53 3.58490566 60 1.6 0.66 2.424242424

2. ## To see how the length of a wire will effect it&amp;amp;#146;s resistance.

In my prediction I said that if the length increases than the resistance will also increase in proportion to the length. From my graph I have shown that my prediction was correct, as the Line of Best Fit is a straight line proving that the resistance of the wire is proportional to the length of the wire.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to
user
The text passage is a student's lab report on an experiment investigating how the length of a wire affects its resistance. It includes an introduction, hypothesis, apparatus list, method, results, and conclusion.

TYPE: NO_QUESTION

The passage does not contain any explicit mathematical questions or calculations. While it discusses the concept of resistance and mentions using a formula (R=V÷I) to calculate resistance, it does not actually show any specific calculations or ask any math questions. The text is primarily descriptive of the experiment and its results.