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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to the total voltage when cells are connected in series?
π‘ Hint: Think about how batteries in a flashlight work.
Question 2
Easy
Are the internal resistances of cells in series added or subtracted?
π‘ Hint: Consider how resistance behaves in a series circuit.
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 is the total emf in a series configuration with two cells, one of 4V and another of 6V?
- 4V
- 6V
- 10V
π‘ Hint: Remember to add the voltages together.
Question 2
True or False: The current in a parallel circuit is the same through all components.
- True
- False
π‘ Hint: Think about how current splits in a parallel connection.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have three 12V batteries in series with internal resistances of 1Ξ© each, connected to a 5Ξ© load. What is the total voltage across the load and what current flows?
π‘ Hint: Donβt forget to add the internal resistances when calculating total resistance.
Question 2
In a parallel arrangement, you connect a 9V battery with a 2Ξ© internal resistance and two identical batteries with 3Ξ© each. What is the equivalent internal resistance?
π‘ Hint: Remember to use the formula for parallel resistances.
Challenge and get performance evaluation