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Questions and Answers
What is the function of a cell in producing electricity?
What is the function of a cell in producing electricity?
- Converting mechanical energy into electrical energy
- Converting light energy into electrical energy
- Converting chemical energy into electrical energy (correct)
- Converting electrical energy into chemical energy
In a cell, what are the dissimilar metals known as?
In a cell, what are the dissimilar metals known as?
- Electrodes (correct)
- Electrolytes
- Cathodes
- Anodes
Which electrode is known as the anode?
Which electrode is known as the anode?
- Copper electrode
- Negative electrode
- Positive electrode (correct)
- Zinc electrode
What happens when a copper rod and a zinc plate are joined in a container filled with dilute sulphuric acid?
What happens when a copper rod and a zinc plate are joined in a container filled with dilute sulphuric acid?
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What happens as a result of the chemical reaction in a simple cell?
What happens as a result of the chemical reaction in a simple cell?
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Which way does the current flow in a cell, and in which direction do electrons move?
Which way does the current flow in a cell, and in which direction do electrons move?
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What happens when a bulb is connected between the copper and zinc terminals in a cell?
What happens when a bulb is connected between the copper and zinc terminals in a cell?
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Study Notes
Cell Function and Components
- A cell produces electricity through a chemical reaction between two dissimilar metals.
- The dissimilar metals in a cell are known as electrodes.
Electrodes and Reaction
- The electrode where oxidation occurs is known as the anode (typically zinc).
- When a copper rod and a zinc plate are joined in a container filled with dilute sulphuric acid, a chemical reaction occurs, resulting in the flow of electrons.
Current Flow and Electron Movement
- The current flows from the copper terminal to the zinc terminal in a cell.
- Electrons move from the zinc terminal to the copper terminal.
Applications of Cells
- When a bulb is connected between the copper and zinc terminals in a cell, it lights up, indicating the flow of electricity.
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