Question
When the diode shows saturated current, dynamic place resistance is:
- Zero.
- Infinity.
- Indeterminate.
- Different for different diodes.
✓
Answer
- Infinity.
Explanation:
Saturated current is the maximum current beyond which, there is no effect of plate voltage (VP) on the plate current (IP). At this stage, dynamic resistance is infinite.
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For small deformations within elastic limit the stress and strain are proportional to each other. This is known as
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Hooke’s law. Thus, stress α strain
Stress = k × strain
Where k is the proportionality constant and is known as modulus of elasticity. Hooke’s law is an empirical law and is found to be valid for most materials. However, there are some materials which do not exhibit this linear relationship.
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