Practice - Key Concepts in Electricity
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the unit of electric charge?
💡 Hint: It starts with 'C'.
What does Ohm's Law express?
💡 Hint: Think about voltage, current, and resistance.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the unit of electric potential difference?
💡 Hint: Think about what pushes electric current.
True or False: In a series circuit, the voltage is the same across all components.
💡 Hint: Recall how voltage is distributed.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Design a circuit that powers three light bulbs in series and calculate the total resistance if each bulb has a resistance of 2 Ω.
💡 Hint: Add the resistances for series circuits.
If a power supply provides 24 V and a device draws 4 A of current, what is the power usage?
💡 Hint: Use the power formula.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.