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Unit 11: Electric Circuits

Resistance, Resistivity, and Ohm's Law

Find a resistor's resistance from its material and shape, integrate a varying resistivity, apply Ohm's law, and read resistance off an I-V graph.

Topic 11.3 · 11 min read

This lesson comes with the AP Physics C: Electricity and Magnetism plan

In this lesson

  1. 01Resistance
  2. 02Resistivity and the shape of a resistor
  3. 03Ohm's law and ohmic materials
  4. 04Worked examples
  5. 05Where students lose points
  6. 06On the exam

The first units’ lessons are free. The plan opens every lesson, every practice question with worked solutions, your study plan and calendar, for $14.49 a month. Cancel any time.

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