4/7/2014 Resistance & Resistivity

Resistance

Measuring the current go through the resistor at different applied voltage.

Recorded experiment data(I1) and compering to other group's data(V2 & I2).  In the voltage vs current graph, series 2 has greater resistor then series 1.  Series 2 has less amount of current go through when there is same voltage applied.  

Relationship between voltage and current and deriving the unit of resistance.  

Resistivity

Measuring the resistance in different materials such as copper and nickel silver(different length) to see the relationship between length of wire and resistance. 

Recorded experiment data from measured resistance in different material/length.  The resistance vs length graph showed that copper has less resistance than silver even the copper soil has tan times of length than nickel silver.  There is linear relationship between resistance and length.  

The relationship between resistance and length/cross section area/resistivity of material.