Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Resistance of wire Aim: Find out what effects the resistance in a wire. Factors: The four main factors that affect the resistance of a wire are: * Thickness of wire * Size of current and voltage * Type of wire * Length of wire I have chosen to do the length of wire. Prediction: I predict that the longer the wire is the more resistance there is because... Fair test: We will make this a fair test by keeping the voltage, type of wire, thickness of the wire the same. The only thing we will change will be the length of the wire. Method: Get a piece of wire and measure it into sections of 10cms, 20cms, 30cms, 40cms, and 50cms. Attach it to a power supply at 3 volts and measure the current that flows through it. Do this 5 times, then calculate the resistance using the most common recording by dividing the current by the voltage. Preliminary experiment: Type of...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 150,159 others