Question

What is the shape of V-I graph for a conductor and an insulator?

Answer 1

The shape of V-I graph is a straight line passing through the origin.

• For a conductor Potential difference is directly proportional to current passing through the conductor i.e., V∝I

• The physical conditions such as Temperature density etc should be remained unchanged while taking the values for rrawing the graph

• The slope of graph gives the value of resistance in the conductor

• The units for the resistance is ohm