What Affects the Strength of an Electromagnet? Essay -- essays researc

What Affects the Strength of an Electromagnet?Aim What is the effect of increase the current and increasing the number of coils when picking up paper clips?Definition First of all, an electromagnet has to be defined. An electromagnet can also be called a Solenoid, Which consists of a core of iron and then telegram is wrapped lash out it. PredictionI call up that as the current carried in the wire gets stronger, so will the magnetic field surrounding the electromagnet. Therefore, I think that the numerate of paper clips picked up will increase as the voltage gets higher until the electromagnet cant pick up any more paper clips. I also predict that the more coils wrapped round the wire creates a bigger magnetic field allowing more paper clips to be picked up.VariablesThickness CoilsLength of wire effect MaterialIf the paper clips are already slightly magnetized from previous experimentsWeight of the PaperclipsNumber of Paperclips availableEquipment Mat - (To protect the surface of the bench) index number bevy - (To control the voltage of the current) *Battery Pack (To control the voltage of the current)Crocodile Clips - (To take the electricity to the Electromagnet)Paper Clips (To test the conductivity of the Electromagnet)Electromagnet Iron Nail - (to act as a core) Wire - (wrapped around the core)Test the Voltage Method 1. Take the Iron pole and wind the wire around it, leaving the two ends of the wire free.2. Plug two crocodile clip leads into the Power pack and attach each crocodile clip to a different end of the wire which is wound around the rod.3. deform on the power to the required voltage (I had a problem with the power pack because they kept short circuiting so I decided to use a battery pack but they would drain very quickly and could only test 2, 4, and 6 volts) and then bring the box of paper clips up so that they are touching the Iron rod4. If there are any paper clips still hanging, take them off and count them and record the results The above system was repeated at 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 & 12 Volts.Testing the Number of Wires Method 1. Take the Iron rod and wind the wire around it 10 generation increasing the number of coils by 10 each time up to 100 coils, leaving the two ends of the wire free.2. Plug two crocodile clip leads into the Power pack and attach each crocodile clip to a different end of the wire which ... ...4.605051455149125.005053454648ConclusionThe results did show that my predictions had been right. The amount of paper clips increased by increasing voltage or by increasing the no. of coils(as Shown on the graph). The fact that the electromagnet gets stronger or weaker as you change the voltage is a useful one and the fact that the magnetic field gets bigger depending on how many no. of coils and gets stronger for how much voltage is passed through the coils.Probably the reason that some of the results were anomalous because some of the paperclips may have become magnetised, or the ter minal may have become a weak permanent magnet. My best fit line didnt pass through the origin, although it came very close. This is probably because the iron rod became slightly magnetised and acted as a weak permanent magnet, before it was connected.