• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6
7. 7
7
8. 8
8
9. 9
9
10. 10
10
11. 11
11

# The aim of this investigation to see the strength of an electromagnetic by varying many variable, and seeing how this affects the performance of the electromagnet.

Extracts from this document...

Introduction

Physics coursework

Aim

The aim of this investigation to see the strength of an electromagnetic by varying many variable, and seeing how this affects the performance of the electromagnet.

Variables

there are many variables which can increase or decrease the magnetism of the electromagnet. these are the following variables:-

Number of coils:- the more the number of coils the more the electromagnetism because, each coil creates a magnetic field. So the more coils the more magnetic fields thus the magnetism increases.

Current:- this will increase the number of electrons going around the electromagnet therefore increasing the amount of magnetism.

Distance:- the distance the electromagnetic is away from the target object will also decrease the magnetism.

Type of iron core:- the material of the iron core could dramatically change the amount of magnetism.

Length of nail:- The length of the nail will be a controlling factor, because the longer the nail is the more coils can be fitted around the nail, thus making more magnetic fields, and increasing magnetism.

Length of wire:- The longer the wire is, the more oppurtunity for making more coils and increasing magnetism. Also the longer the wire is, and the number of coils increase, also their will be more electrons available to travel around the iron nail, therefore increasing magnetism.

Middle

As you can see in the diagram the variable resistor is set in series, and the voltmeter in parallel and ammeter in series.The ammeter is used to check the current is kept consistent. The apparatus we used are listed below:-

1.variable resistor

2.ammeter

3.voltmeter

4.wire

5.iron nail

6.newton meter

7.power pack

To start of with I connected everything up using crocodile clips, and also did the experiment standing up for safety reasons. Then i put the power pack up to 4v, so that it would work efficiently and things wouldn’t get too hot to handle.

Safety

For safety i will ensure im always standing up, to avoid any awkward situations which could arose. Standing up is much more easier to get out of the way of certain hazards. Secondly i will conduct the experiment on a wooden surface, to ensure if any electrical problems happen it will no be conducted. Thirdly, i will not conduct the experiment anywhere near any wet surfaces, or taps etc, this is mainly because water is very conductive of electricity, and could cause electrical shocks. Also i will not be conducting the experiment direct from the mains, because the voltage is too large, and could be very dangerous, instead i will be using a power pack, which is much more safer then the mains.

Fair test

Conclusion

Conclusion

I would like to do this experiment again, and have a much larger range, to see what happens when u extrapolate outside the points which i have tested, and wanting to know if the same formulas and proportions, and correlations apply. Also i would like to repeat the testing of each value up to 5 times so the accuracy is increased even more, and instead of analysing the mean, i would like to analyse the modal values. Also i would like to see how the other factors which affect the performance of the electromagnet, actually change the magnetism, and would like to test these, also to see if there is any further, interlocking formulas etc.

This student written piece of work is one of many that can be found in our AS and A Level Fields & Forces 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 AS and A Level Fields & Forces essays

1. ## paper cones investigation

5 star(s)

5.19 6 200 3.27 4.12 -21 167 3.43 3.41 1 143 2.79 2.90 -4 125 2.72 2.52 8 111 2.21 2.22 -1 100 1.64 1.98 -17 90.9 2.01 1.79 12 83.3 1.58 1.63 -3 76.9 1.84 1.49 23 71.4 1.37 1.37 0 66.7 1.35 1.27 6 62.5 1.16 1.18 -2

2. ## How does the number of coils on an electromagnet affect its strength?

So pure iron is called magnetically soft, and is perfect to use as a core for an electromagnet. Steel stays magnetic after being in a solenoid, it is magnetically hard. This means solenoids can be used to make permanent magnets made of steel.

1. ## Investigation to find out what affects the size of a shadow.

I can clearly see that there is a pattern to my results. I can see as the objects height from the screen increases the shadow size clearly increases. I know this to be true because as an object gets closer to a light source more light is blocked out this is because light can only travel in straight lines.

2. ## To investigate the effect of current on the strength of an electromagnet field.

of the magnet and so its permeability as ferromagnetic materials such as iron have large magnetic pereambility. This will be kept constant by using the same wire coiled around the magnet throughout the experiment. 3. Length of Soft Iron The longer the soft iron bar , the more domains there

1. ## Investigating a factor affecting the voltage output of a transformer.

In this way my results support my prediction. I plotted these results on a graph so that this relationship can be seen more clearly. I then constructed lines to see whether the secondary voltage is directly proportional to the primary voltage, as I predicted. Primary Voltage (V) Secondary Voltage (V)

2. ## Stopping distance Investigation.

My reason for doing this is to see if the stopping distances for this experiment differ from those on the first, because of the way that the weight is distributed on the trolley. I will conduct a third experiment, but this time varying the starting distance instead of the mass.

1. ## Investigating the factors affecting the strength of an electromagnet.

was a constant of Amps 0.5 1 1.5 2 2.5 3 Paperclips (Experiment 1) 2 4 5 6 8 10 Paperclips (Experiment 2) 2 4 5 6 8 10 Average 2 4 5 6 8 10 * Conclusion: My results show that the increase in current and increase in coils

2. ## Viscosity Experiment. The aim of my investigation will be to analyse the relationship ...

the increase in speed, the downward force due to gravity will decrease, this is where acceleration stops. From this point the object is in terminal velocity, and will remain at this velocity, if no other force acts upon this object.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to
improve your own work