6 min read
This study guide covers power and energy in circuits, focusing on calculating power using formulas like P = IV, P = I²R, and P = V²/R. It explains the relationship between power and lightbulb brightness, including how to predict brightness differences. The guide also provides practice questions involving circuit analysis and power calculations, along with an answer key and scoring breakdown. Finally, it offers exam tips for time management and avoiding common mistakes.
Give us your feedback and let us know how we can improve
Question 1 of 8
A circuit component has a voltage of 12 V across it and a current of 2 A flowing through it. What is the power dissipated by this component? 🚀
6 W
14 W
24 W
48 W