Question

13. What happens if materials donot obey ohm's law?
14. How do we determine force experienced by negative charge moving through an uniform magentic
field.
- Bynning the Right hand thumb rule​

Answer 1

Answer:

13. if materials do not obey ohms law they are called non ohmic conductor. Those material shows curve line on graph of voltage versus current.

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Answer 2

If materials do not obey ohm's law than a curved shape graph is obtained.

Explanation:

• Ohm's law states that the current is directly proportional to the voltage/
• I = V / R
• Where I is current, V is voltage and R is resistance.
• There are some materials which do  not obey ohm's law and are called non-ohmic materials.
• when a graph is plotted between voltage and current than curved line is obtained which shows that the material doesn't obey ohm's law.