Question

4.
The graph between V and I for a conductor is a straight line passing through the
origin.
(a) Which law is illustrated by such a graph? What should remain

constant in a statement of this law?
(b) Name the electrical property of a material whose symbol is "omega". 1
(c) Name a material which is used for making the heating elements of

electrical appliances.
(d) Give two reasons why the above material is used for the said purpose. ​

Answer 1

Answer:

a.The V-I graph of conductor illustrates the ohm's law. The temperature of the conductor remain constant in the ohm's law.