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I-V characteristics and graphs in physics

Electricity and circuits • Current, voltage, and resistance

Key concepts

What you'll likely be quizzed about

  • I-V characteristics describe the relationship between the current flowing through a component and the voltage across it.
  • For resistors, this relationship is linear, meaning proportional changes in voltage yield proportional changes in current.
  • Non-linear components like diodes exhibit distinct characteristics, where current may only flow in one direction once a certain voltage threshold is reached.

Flashcards

Test your knowledge with interactive flashcards

What type of I-V behavior do diodes exhibit?

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Diodes show non-linear I-V behavior, allowing current to flow primarily in one direction after a threshold voltage.

Key notes

Important points to keep in mind

I-V graphs are essential for analyzing circuit behavior.

A straight line on the graph indicates a constant resistance.

Non-linear components have unique curves in their I-V characteristics.

Threshold voltage is critical for components like diodes.

Always note the direction of current flow in I-V graphs.

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