Draw V - I graph for ohmic and non-ohmic materials. Give one example for each.

Explanation

To solve the question of drawing V-I graphs for ohmic and non-ohmic materials and providing examples for each, we can follow these steps:

### Step 1: Understanding Ohmic Materials
Ohmic materials are those that obey Ohm's Law, which states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points. The relationship can be expressed as:
\[ V = I \cdot R \]
where R is the resistance, which remains constant.

### Step 2: Drawing the V-I Graph for Ohmic Materials
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