# Lesson : Series and Parallel Circuits Exercises

Before you dive into the multiples exercises, you can find a cheat sheet for Ohm’s law, Power law, series and parallel circuit at this page. This will be useful to solve the exercises.

Exercise 1:

Find $V_{1}, V_{2}, V_{3}, R_{2}$ and the resistance of the equivalent circuit (Req). Calculate the power dissipate for every resistors and the total power dissipate by this circuit.

$V_{1}$: Volt

$V_{2}$: Volt

$V_{3}$: Volt

$R_{2}$: Ohms

$Req$: Ohms

$P_{1}$: Watt

$P_{2}$: Watt

$P_{3}$: Watt

$P_{tot}$: Watt

Exercise 2:

Find $R_{2}, I_{1}, I_{3}, I_{tot}$ and the resistance of the equivalent circuit Req.

$R_{2}$: Ohms

$I_{1}$: Ampere

$I_{3}$: Ampere

$I_{tot}$: Ampere

$Req$: Ohms
For Req, keep two digits after the decimal point.

You now have completed the Chapter 1 of Learn Electronics. In the next chapter, we will continue with series and parallel circuits but we will mix them together. We will also discuss about Kirchhoff’s laws and the voltage divider. Like this chapter, you will have examples and exercise at the end of the chapter.