Question

5. What kind of graph is obtained by plotting current against potential difference for metallic conductor ​

Answer 1

Explanation:

Ohm's law:

  The graph between the potential difference V and the current I flowing through a metallic conductor is a straight line curve. In the operating range of values, the relation between the voltage V and the current I is linear.

   V = I R  

R = resistance of the metallic conductor.

R is obtained by finding the slope of the graph.  

 R = (V2 - V1)/(I2- I1)