In this lesson, you will ensure that you had fully understood the Ohm’s law.

Resistors in series and parallel

Voltage Divider

When:

  • $ V $ = 10 V
  • $ R_{1} $ = 10 ohm
  • $ R_{2} $ = 20 ohm
  • $ R_{3} $ = 40 ohm

What is $ I_{2} $, the current flowing through $ R_{2} $?

Hints

  • Solve the total resistance of $ R_{2} $ and $ R_{3} $, $ R_{2and3} $ first.
  • Total resistance is $ R_{total} = R_{1} + R_{2and3} $.

Other lessons

Other lessons in Electronics Basic Course:

  1. Simple Circuits Measurements Fundamentals
  2. Multimeter
  3. Ohm's Law
  4. LED and Vf
  5. Voltage Divider
  6. Current Divider
  7. Series and Parallel resistors This lesson
  8. Pulse Width Modulation
  9. Traffic signal