Question detail
Why is an external electrical current necessary for recharging a battery?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Chemical cells and fuel cells (chemistry only)
Question
- A. To cool down the battery.
- B. To reverse the chemical reactions.
- C. To increase the battery's size.
- D. To change the electrolyte.
Answer
To reverse the chemical reactions.
Explanation
An external electrical current is required to reverse the chemical reactions that occur during the discharge of a rechargeable battery, allowing it to be reused.
Common mistake
Misunderstanding Rechargeability
Students often think that rechargeable cells can be recharged indefinitely without any loss of capacity.
Explain that while rechargeable cells can be recharged multiple times, their capacity decreases over time due to chemical degradation.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.