FratFiles

• Save Paper

Introduction
The resistance of a wire depends on certain factors. Some of these variables are listed below:
• Length of wire
• Diameter or thickness of wire
• Temperature at which wire is kept
• The material of which wire is made out of.
• The potential difference or voltage.
• Humidity
• Cross sectional area.
• Voltage across circuit
All these factors will have to be kept constant except the diameter of the wire whilst doing the experiment to ensure that the investigation is a fair test.
I have decided to investigate how the diameter of a wire affects its resistance because other factors such as temperature are hard to control or vary. There is not a large enough range of materials to investigate how materials affect the resistance of a wire. The way in which the diameter of a wire affects the resistance is an efficient experiment to do. A graph can be plotted easily, there is a large range of results and the results can be recorded easily.
Variables......

View the rest of this paper...

Approximate Word Count: 4024
Approximate Pages: 17 (250 words per double-spaced page)

Similar Essays

1. Resistance Of A Wire
   

   Resistance of a Wire. GCSE Physics Coursework ... same. Prediction I predict there
   will be more resistance the longer the wire is. This is ...

2. Current And Resistance Of A Wire And The Affects When The Length ...
   

   current and resistance of a wire and the affects when the length changes. Current
   and Resistance Physics Investigation Aim: Investigate ...

3. Investigating The Resistance Of Wire
   

   Investigating the resistance of wire. Investigating the resistance of a
   wire. Planning For this investigation there are a number ...

4. Resistance Of A Wire
   

   ... Resistance of wire of 40cm = 1.8 Ohms Resistance of wire of 80cm = 3.63 Ohms 3.63 /
   1.8 = 2.016 ohms The resistance of 80cm wire is double the resistance of ...

5. Resistance Of A Wire
   

   resistance of a wire. Aim: The aim of this investigation is to find out how the
   length of a wire affects the current, voltage, and resistance of a wire. ...