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Electrodynamics

Learn about the electromagnetic properties of our universe, for example about electric charges, currents, electromagnetic fields and so on.
Video
Level 2 (without higher mathematics)

Ohm's Law: 2 Easy Ways to Understand and Apply It to Circuits

Here you will learn how to recognize Ohm's Law in a U-I diagram and how to apply the associated URI formula. Three examples are covered.

Content of the video
  1. [00:00] Introduction
  2. [00:33] The 1st ingredient: Voltage
  3. [01:21] The 2nd ingredient: Electrical conductor
  4. [01:48] The 3rd ingredient: Electric current
  5. [03:18] Data points and Ohm's law as a graph
  6. [05:49] Ohmic conductors
  7. [06:41] Slope of the graph
  8. [07:42] Ohm's law as a formula
  9. [10:07] Example #1: Resistance unknown
  10. [10:33] Example #2: Voltage unknown
  11. [11:01] Example #3: Current unknown