I think this will be the case as the thicker the wire is the larger the diameter is and there fore the room between the ions will be more spread out.
The longer the wire the less volts each centimetre of it will get. However, I made sure that the wire remained straight throughout the experiment. However, using new pieces of wire each time would have been too impractical and time-consuming in the context of this lesson.
The experiments will be investigating the relationship between the thickness of the wire and the length of the wire. This was because I could plot a graph and show the general trend.
Therefore V ё I is constant. This means that the resistance of a metallic conductor is constant providing that the temperature also remains constant.
Resistance depends on the material the wire is made of. Resistance is the result of energy loss as heat. The copper obviously has either smaller ions or just fewer ions than the other two wires. I chose to investigate length and thickness as they are both continuous as opposed to the type of wire which is ——.
Electricity is conducted through a conductor, in this case wire, by means of free electrons. Current is measured in Amperes A. This discharges the cell rapidly and can make it explode.
Teaching notes 1 Use fine gauge wires. For example, I could use different types of wire instead of using only nichrome. The bigger the potential difference across its ends the bigger the current flow.
It occurs when the atoms of the material block the course for the electrons causing the electrons to bump in to them, slowing them down. The amount of guidance will depend greatly upon the teaching group. The variables I will control will be the type of wire resistivity and the cross-sectional area of the wire.
In addition, I will make sure I turn the power pack off after each reading. The amount of resistance depends on factors such as: If the outermost shell or sub-shell with transition metals is less than half full then the atom is willing to let those electrons wander and the material is a conductor.For me to investigate this I must first use my scientific knowledge to understand exactly how and why the length of a wire should affect the current flowing through it.
To investigate how the length of a wire affects the current flowing through it.
* Type of material- the better the conductor the lower the resistance. * Length of. The length of the wire will be changed by moving the crocodile clip across the wire on a ruler.
The independent variable will be the length of the wire because that is what I will be changing. The dependant variable will be the resistance because it will change only due to the length of wire/5(3).
Factors Affecting The Resistance Of Wire Aim: To investigate the factors that affect the resistance in a conductor. The main factors that affect the resistance in a conductor are: · Length · Temperature · Cross sectional area · Material · Magnetism The factor that we are going to change is the cross sectional area.
How the Length of a Wire Affects Its Resistance.
In my physics coursework I am going to investigate the effect of the length of a wire on its resistance. Resistance is the measure of how easy it is for current to flow through a wire. Current is the rate of flow of charge through a conductor, and it is measured in amps using an ammeter.3/5(2).
GCSE Physics Coursework - Resistance of a Wire Coursework Resistance of a Wire Task To investigate how the resistance of a wire is affected by the length of the wire/5(1). Current and Resistance of a Wire and the Affects When the Length Changes Words | 4 Pages.
Current and Resistance Physics Investigation Aim: Investigate how the length of a wire affects the current and resistance of a wire.Download