Mission EC6: P, V, I, R, and Cost Calculations

Mission EC6 pertains to numerous calculation types that relate the quantities power, voltage, current, resistance, and cost. The mission consists of 33 questions organized into 10 Question Groups. You must answer one question from each Question Group to complete the mission. The learning outcomes for this mission are ...
 

Learning Outcomes

• The student should be able to solve computational problems which relate the current to the power and the voltage and problems which relate the current and voltage to the work (or energy) and time.
• The student should be able to solve computational problems which relate the cost of electricity and the time an electrical device is used to circuit variables such as power, current, voltage and resistance.

 

Launch Mission EC6

 

Getting Help

If you are not familiar with this topic, then you should first learn about the topic using our written Tutorial or our Video Tutorial:
 

The Physics Classroom, Circuits Unit, Lesson 2, Part d

The Physics Classroom, Circuits Unit, Lesson 3, Part d

• What is the relationship between the power rating of an electrical device and the current in it and electric potential difference across it?
• What is the relationship between the power rating of an electrical device and the resistance of it and electric potential difference across it?
• What is the relationship between the power rating of an electrical device and the resistance of it and the current in it?
• What is the relationship between power, energy and time?
• What is a kilowatt-hour? How is it related to the cost of electricity?

 

Video Tutorials:

Electric Power Revisited

 

 

Question-Specific Help

Each Question Group has its own Help page with information specific to the question. You can access the Help page from within the mission by tapping on the Help Me! icon (textbook). For your convenience, links to those pages are provided below: