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How do you make Electro-Magnets Stronger?

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Introduction

How do you make Electro-Magnets Stronger? Introduction When a current passes through a circuit it creates 2 things: Heat and a magnetic field. All things electrical create a magnetic field; this field surrounds all electrical objects in a circle like way. The magnetic field then makes the circuit/object turn into an electromagnet. An Electromagnet is something that acts like a magnet when electricity passes through it. This investigation is trying to find out how to make an electromagnet stronger and more powerful. Compared to a permanent magnet, an electro-magnet has the advantage that it can be switched on and off. However it has the disadvantage that it requires power. They have many different uses. Some of which are listed below 1. The crane in a scrap yard 2. Hospitals: to remove metal (iron, Cobalt, Nickel or alloys with these metals in)

Middle

the number of coils the same (10 coils). The tightness of the coils. The length of the wire and I will use the same nail. For the number of coils test I will keep: the tightness of the coils the same. The same nail and the same voltage (6 volts). Method 1. Collect the equipment and set up as shown in the diagram. 2. Activate you equipment by turning on the power supply. 3. Using Gloves pick up the nail. 4. Try and pick up as many paper clips as possible using the head of the nail. 5. Deactivate the circuit and count the number of paper clips picked up 6. Record your results 7. Repeat each experiment at least 3 times for each different setting within your variable 8. When you've finished repeat steps 1-7 for another variable Safety Always wear gloves to pick up the nail as it is part of a live circuit and generates Heat and will give you an electric shock.

Conclusion

I did see however that the number of coils does affect the power of the Electro magnet. I believe I proved my Hypothesis in saying that the more coils the stronger and more clustered is the magnetic field around 1 point; the Iron nail. I can see from my table and graph that for every 5 coils added another 2 paper clips could be picked up. This concludes that the best way to make an Electromagnet stronger is by raising the number of coils located around the magnetic object. Evaluation I think I preformed the Experiments to the best of my ability. I believe the results correct because there was a definite trend in them, helping me to predict further results. Also I think I preformed it well because there were an anomalous results. I think that the experment would be improved if it was preformed where there was no other electrical Instruments around to interfere with the Electromagnet. Also if the paper clips were all the exact same weight and shape.

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