Question

the given figure shows the v-i graphs for resistors. Identity the resistor that obeys own's law. Give a reason for your answer?​

Answer 1

Answer:

Graph (a)

Explanation:

Ohm's law states that current flowing through a resistor is directly proportional to voltage applied keeping physical states constant.....

so in Graph (a) which is a straight line which shows that current i proportional to voltage across resistor which is Ohm's law

Answer 2

Answer:

resistor A

Explanation:

As you can see from the graph of resistor A  forms a uniform straight line in the voltage-current graph indicating that the the voltage drop across the resistor is proportional to the current passing through the resistor. Hence, it follows the Ohm's law that states that :

                         

Ohm's law  == > V ∝ I  or Voltage is directly proportional to current

Whereas in the resistor B, the graph is non-uniform i.e. it is not a straight line graph. the relation between V and I is not directly proportional.  Hence, we can say that the resistor B is a non - ohmic component / resistor as it does not follow the ohm's law.