Question

What is the V/I ratio at 5V and 10V? What conclusion does one draw from the values?

Answer 1

Explanation:

The V/I ratio at 5V will be 5/2 and at 10V will be 10/4 or in simpler form 5/2.

The V/I ratio remains same . It means the resistance is constant. So the substance must be an ohmic conductor because ohmic conductors give straight line for V-I graph

Answer 2

Answer:

Hello!

Explanation:

The V/I ratio at 5V is = 5/2 = 2.5

and V/I ratio at 10V is = 10/4 = 2.5

So from these we can conclude that V/I graph is always a straight line and

V ∝ I

or in simple words Potential difference of ohmic device is proportional to the current flowing the device