Unit 4: Direct Current Circuits

Introduction to Unit 4

An electric circuit is a collection of electrical components connected by conductors. Human-made circuits range from simple flashlights to computers. In this section, we analyze simple electric circuits that contain batteries, resistors, and capacitors in various combinations. Some circuits contain resistors are analyzed using simple rules and the analysis of more complicated circuits is simplified using Kirchhoff’s rules.

Intended Learning Outcomes

Having successfully completed this section, you should be able to

• Read an electric circuit diagram, identifying individual components and their interconnections;
• Analyse simple DC circuits, and use electrical measuring instruments;
• Describe the time-dependent behavior of circuits that include capacitors;
• Explain how electric power is distributed in the home circuits and use electricity safety.

Learning Activities

E-tivity 4.1: Read the attached handouts

E-tivity 4.2: Post any question or challenge you faced while reading the handouts. You are also invited to react on posted topics by your colleague(s) or by e-moderator(s)

E-tivity 4.3: After reading the handouts attached under this unit, attempt the questions of the quiz

E-tivity 4.4: After completing this unit (and the previous ones), attempt the questions of assignment #2