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Questions and Answers
What causes the flow of electric charges in a conducting metallic wire?
What causes the flow of electric charges in a conducting metallic wire?
- Chemical action within the wire
- Temperature difference along the wire
- Presence of gravity
- Potential difference along the conductor (correct)
What is responsible for generating the potential difference in a battery?
What is responsible for generating the potential difference in a battery?
- Temperature difference across the terminals
- Presence of magnetic field
- Chemical action within the cell (correct)
- Friction between the terminals
In the analogy of flow of water, what does the higher level tank represent for the flow of charges in a conducting wire?
In the analogy of flow of water, what does the higher level tank represent for the flow of charges in a conducting wire?
- Presence of magnetic field
- Lower potential end
- Higher potential end (correct)
- Temperature difference along the wire
What role does gravity play in the flow of charges in a conducting metallic wire?
What role does gravity play in the flow of charges in a conducting metallic wire?
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What happens when a cell is connected to a conducting circuit element?
What happens when a cell is connected to a conducting circuit element?
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Study Notes
Electric Current and Potential Difference
- Electric charges flow in a conducting metallic wire due to a potential difference, also known as voltage, between two points in the wire
- The potential difference in a battery is generated by a chemical reaction between the electrolyte and electrode materials
Flow of Electric Charges Analogy
- The higher level tank in the analogy of flow of water represents the higher potential end of the wire, where the electric potential is greater
- In this analogy, the flow of water represents the flow of electric charges in a conducting wire
Gravity and Electric Current
- Gravity does not play a role in the flow of charges in a conducting metallic wire
Connecting a Cell to a Circuit Element
- When a cell is connected to a conducting circuit element, such as a wire, it creates a closed circuit, allowing electric charges to flow from the higher potential end to the lower potential end
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