We think you are located in United States. Is this correct?

# Practise now to improve your marks

You can do it! Let us help you to study smarter to achieve your goals. Siyavula Practice guides you at your own pace when you do questions online.

# Chapter 10: Electric circuits

## 10.1 Introduction (ESCPS)

The study of electrical circuits is essential to understanding the technology that uses electricity in the real-world. In this chapter we will focus on revising content from Grade 11 and extending our understanding of the internal structure of a battery/cell and how this influences what you already know about circuits.

• Units and unit conversions- Physical Sciences, Grade 10, Science skills
• Circuit components- Physical Sciences, Grade 10, Electric circuits
• Ohm's law - Physical Sciences, Grade 11, Electric circuits
• Series and parallel components - Physical Sciences, Grade 11, Electric circuits
• Equations - Mathematics, Grade 10, Equations and inequalities

Series and parallel networks of resistors:

• Understanding of Ohm's Law.
• The meaning of conservation of charge and energy for different types of circuits.
• Calculations done using series and parallel circuits.
• Solve problems involving current, voltage and resistance for circuits.

Batteries and internal resistance:

• State that a real battery has internal resistance.
• Do experiments of finding the internal resistance of a battery.
• Do calculations by using circuits with batteries with internal resistance.

Evaluating internal resistance in circuits:

• Solve circuit problems using batteries with internal resistance with series, parallel and series-parallel circuits.

Extension: Wheatstone Bridge:

• Definition of a Wheatstone Bridge.
• Solve problems concerning the Wheatstone Bridge.
• Units and unit conversions- Physical Sciences, Grade 10, Science skills
• Circuit components- Physical Sciences, Grade 10, Electric circuits
• Ohm's law - Physical Sciences, Grade 11, Electric circuits
• Series and parallel components - Physical Sciences, Grade 11, Electric circuits
• Equations - Mathematics, Grade 10, Equations and inequalities