• 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

# Factors Affecting The Strength of An Electromagnet

Extracts from this document...

Introduction

Factors Affecting The Strength of An Electromagnet Aim To find out the factor affecting the strength of an electromagnet when picking up paper clips. The idea was to count the paper clips that the electromagnet picked up. Predictions First of all, an electromagnet has to be defined. An electromagnet can also be called a Solenoid. An electromagnet can consist of just one wire, but usually an electromagnet is made up of wire coiled around a soft ferromagnetic core (a solenoid). This extract comes from the book ' The Working World of Physics', " Those like Iron, Nickel and Cobalt which are easily magnetised are called Ferromagnetic." Materials that only react in a very strong magnetic field are called Paramagnetic. What I think will happen is the current will flows through the wires of the solenoid and which will creates a magnetic field. By introducing more current, the magnetism will increase. ...read more.

Middle

This experiment was a fair test because: * The same power pack was used each time. * The same paper clip was used each time and they were all roughly the same weight. * Only one factor (i.e. the current) was changed. * The core of the electromagnet always had the same surface area. * The same equipment was used each time. * The pins were all made of the same material. Key Factors that could affect this experiment were: * The metal that the core is made of. * The accuracy of the amount of electricity being used. * If the paper clip I've already used are magnetised in the box. * If the core stays a permanent magnet after the electricity is turned off. Results of my Experiment My first test Current (Amps) Number of clips 0.00 0 0.10 4 0.20 6 0.30 8 0.40 12 My second test Current (Amps) Number of clips 0.00 0 0.10 0 0.20 6 0.30 9 0.40 14 My third test Current (Amps) ...read more.

Conclusion

Probably the reason that some of the results were anomalous was because the voltage used wasn't precisely accurate as the dials on the variable resistance can be misread slightly. Also, some of the paper clip may have become magnetised, or the nail may have become a weak permanent magnet. These reasons could also account for the spread of data in the other results. Generally, my results are confirmed in the book 'Explaining Physics': On page 289 of the book 'Explaining Physics', it says, "Experiments show that, for a solenoid of any given length, the strength of the magnetic field can be increased by increasing the current." Improvements If this experiment were used again, I would try to improve it in the following ways: * Using Iron filings or something that can give me ideal of its weight. * Taking more readings at different voltages. * Using a material for a core, which won't become a permanent magnet when the electricity is turned off. * Taking more readings at higher voltages to try and get to the point of magnetic saturation. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Waves 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 Waves essays

1. ## The aim of my experiment is to see what factors affect electromagnetism the most ...

around the electromagnet (I know that the heat can't be absolutely controlled but I can make sure that it differs as little as possible) and that I am to use the same nail throughout all tests (results may differ from nail to nail because of varying material etc.).

2. ## Our aim for this experiment is to find out a method of increasing the ...

They are very similar to the first set of results I had gathered, although you can see another anomalous result at the fifty coils mark. It had picked up more paperclips than it should have. There is also not such a very clear pattern to these sets of results.

1. ## What factors affect the strength of electromagnetism?

As the current was increased the electromagnet exerted a larger force and the force nearly doubled when the current was doubled. As seen from the graph, the force approximately doubled, i.e. increased from 0.6N - 1.3N when the current was doubled from 1.0A to 2.0A and was increased to 1.3A

2. ## Investigate the factors that affect the Strength of an Electromagnet.

When there is more current passing, there will be more wire or a more magnetised core. Result table: Voltage NO. OF TURNS MASS(G) IRON 1 MASS(G) IRON 2 MASS (G) IRON AVERAGE 4 15 6.02 6.21 6.12 4 30 6.41 6.60 6.50 4 45 7.22 7.23 7.23 4 60 7.51

1. ## Physics investigation- Strength of Electromagnet

unsettle the average Limits * A maximum 0f 4 amps stopping us reaching a point of saturation * A maximum number of coils * Only repeated the test twice * We had to settle for the nearest amps to the round figures we wanted Why?

2. ## What factors affect the strength of an electromagnet?

The coiled nail was put over a sheet of paper which had iron filings on, 6v was used and when the power was switched on the wire appeared to pick up the iron filings and this told us that an electromagnet was formed, because it was a short circuit the

1. ## Light is so common that we often take it for granted.

These collisions produce such a variety of states among the atoms that the photons released have a wide range of energies. The combination of all the resulting colours is white light. As the poker cools, fewer atoms are excited to high energies, and so the atoms emit fewer photons with the higher energies of blue light.

2. ## Investigating the Factors that Affect the Strength of an Electromagnet.

In fact, this is the experiment I am going to conduct. There are numerous variables that could affect this investigation: * Voltage * Size of core * Number of turns in coil * Material used for core * Material used for coil However, I am going to investigate the factor

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