Ohmic or Non-Ohmic? - Reasoning Explained

[raman911]

http://img257.imageshack.us/img257/9976/ohmsjv1.png 1.



Homework Statement

its ohmic or non ohmic?if ohmic why?if non ohmic why?

 

[turdferguson]

Does its resistance change?

 

[f3nr15]

What we found: The graph is not a straight line which shows that the nichrome wire does not obey Ohm's Law, that is, it is non-ohmic.

 

[jcdj235]

As the relationship is not linear, the graph is NON OHMIC.

Ohms law states that the Voltage (Potential Difference) and Current of a circuit are both DIRECTIONALLY PROPORTIONAL to each other - therefore a graph produced displaying the relationship between the two would be linear.

Hope this helps!