Practice - Introduction to Batteries: Primary vs. Secondary Batteries
Practice Questions
Test your understanding with targeted questions
What is a primary battery?
💡 Hint: Think of batteries you throw away after use, like in remotes.
Give one example of a secondary battery.
💡 Hint: This battery is commonly found in smartphones.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of battery is designed for single use and cannot be recharged?
💡 Hint: Think of batteries that end up in trash after you use them.
True or False: Lithium-Ion batteries are an example of primary batteries.
💡 Hint: Consider what happens to batteries over time.
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Challenge Problems
Push your limits with advanced challenges
A device requires 5V to operate continuously. If you have a primary battery with a nominal voltage of 1.5V, how many batteries would you need to connect in series to power your device?
💡 Hint: Calculate how many batteries would need to add up to at least 5V!
If a Lithium-Ion battery has a capacity of 2000mAh and can be discharged to a depth of 80%, what is its usable capacity?
💡 Hint: Consider how much battery power you can safely use without damaging it.
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Reference links
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