Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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 related to the topic.
Question 1
Easy
What is a secondary battery?
💡 Hint: Think about the opposite of a primary battery.
Question 2
Easy
What is the electrolyte in lead storage batteries?
💡 Hint: Consider what is used in car batteries.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What distinguishes a secondary battery from a primary battery?
- Primary batteries can be reused
- Secondary batteries are rechargeable
- Both types are the same
💡 Hint: Think about how long a battery lasts.
Question 2
True or False: Nickel-cadmium batteries are cheaper to manufacture than lead storage batteries.
- True
- False
💡 Hint: Consider the cost factors.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a lead battery has a voltage of 12V and a total capacity of 60 Ah, how many watt-hours of energy can it provide?
💡 Hint: Remember the formula for energy calculation.
Question 2
Analyze the operational efficiency of nickel-cadmium batteries compared to lead storage batteries in terms of cycle life and cost per cycle.
💡 Hint: Reflect on their applications and longevity.
Challenge and get performance evaluation