Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigating the factors affecting the strength of an electromagnet.
Member rating: No Rating | Words: | Submitted: Fri Mar 12 2004
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Electromagnet Investigation Introduction I will be investigating the factors affecting the strength of an electromagnet. An electromagnet produces a magnetic field around the wire, it is made by passing current through a coil of wire. The strength of the field is affected by: * Number of coils * Increased current * Softer Iron core I will see if the electromagnet is more powerful when the current is increased. I will keep all of the factors of the investigation the same, to make it a fair test, this includes the same amount of coils and supply voltage. Apparatus The apparatus that I will require are: * A 2v Power Supply * An Ammeter * A Variable resistor * An Iron Bar * Wires * Crocodile clips * 100 Paper clips Method To carry out the investigation, I will first collect all apparatus and set up the circuit (as shown below). Then I will start with OA and eventually increase to 3A by altering the resistance. The current at which I...
To see the full version of this document, and 145,232 others
