Name two conditions when ohm's law fails?

Explanation

To answer the question regarding the conditions under which Ohm's law fails, we can break down the solution into clear steps.

### Step-by-Step Solution

1. **Understand Ohm's Law**:
- Ohm's law states that the potential difference (V) across a conductor is directly proportional to the current (I) flowing through it, which can be mathematically expressed as \( V = I R \), where R is the resistance.

2. **Identify the First Condition**:
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