In a dry cell, electrons flow from the negative (zinc) terminal to the positive (carbon) terminal.
Here's a more detailed explanation of electron flow within a dry cell:
Understanding the Dry Cell Battery
A dry cell battery is a common type of electrical battery used in many portable devices. Its construction and chemical reactions are key to understanding the flow of electrons.
- Components: According to the reference, a dry cell consists of three main parts:
- A zinc can (acts as the negative terminal).
- An electrolyte paste.
- A carbon rod (acts as the positive terminal).
The Electron Flow Process
- Chemical Reaction: A chemical reaction occurs between the zinc can and the electrolyte paste.
- Electron Generation: This chemical reaction releases electrons at the zinc electrode (negative terminal).
- Electron Flow: The electrons then flow through the external circuit (the device being powered) from the negative (zinc) terminal to the positive (carbon) terminal.
- Circuit Completion: Electrons are then "pumped back" or return, to the zinc terminal to maintain continuous flow, although the provided information does not specify how they return. This return path completes the circuit.
Summary Table
| Feature | Description |
|---|---|
| Electron Source | Zinc can (negative terminal) |
| Electron Destination | Carbon rod (positive terminal) |
| Flow Direction | From negative (zinc) terminal to positive (carbon) terminal |
| Driving Force | Chemical reaction between zinc and the electrolyte paste |
