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Questions and Answers
In a series circuit, what happens to the total resistance as more resistors are added?
What happens to the total current in a parallel circuit if one of the branches is broken?
What happens to the brightness of bulbs connected in a series circuit if one bulb burns out?
Which of the following best defines an alkali in chemistry?
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What is the etymological origin of the word 'alkali'?
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What substance is produced when a water-extract of burned plant ashes undergoes a process involving calcium hydroxide?
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What adjective is commonly used in English as a synonym for basic, especially for bases soluble in water?
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What is the pH of a solution of a soluble base?
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Study Notes
Series Circuits
- In a series circuit, the total resistance increases as more resistors are added.
Parallel Circuits
- If one of the branches in a parallel circuit is broken, the total current remains the same.
Series Circuit Bulbs
- If one bulb burns out in a series circuit, the brightness of the remaining bulbs decreases or goes out.
Alkali Definition
- An alkali in chemistry is a base that dissolves in water.
Etymology of Alkali
- The word 'alkali' originates from the Arabic word 'al-qalīy', meaning 'the ashes'.
Production of Alkali
- When a water-extract of burned plant ashes undergoes a process involving calcium hydroxide, sodium hydroxide (an alkali) is produced.
Synonym for Basic
- The adjective 'alkaline' is commonly used in English as a synonym for basic, especially for bases soluble in water.
pH of Soluble Base
- The pH of a solution of a soluble base is greater than 7.
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Description
Test your knowledge of series and parallel circuits with this quiz. Explore how the total resistance changes in a series circuit, the impact of a broken branch on total current in a parallel circuit, and the effect on bulb brightness in a series circuit when one bulb burns out.
