Correct Option
The correct option isPositive terminal of one cell to the negative terminal of the other.
Explanation
A battery is a device consisting of two or more electrochemical cells connected electrically to provide a source of electromotive force (EMF). The most common method to form a battery is by connecting cells in series to increase the total voltage output.
Detailed Analysis
- Positive terminal of one cell to the positive terminal of the other. and Negative terminal of one cell to the negative terminal of the other. are incorrect: Connecting like terminals (positive to positive or negative to negative) in a linear sequence causes the EMFs of the cells to oppose each other. If the cells have equal voltage, the net potential difference becomes zero, and no current flows.
- Positive terminal of one cell to the negative terminal of the other. is correct: To form a series combination (a battery), the positive terminal of one cell is connected to the negative terminal of the next cell. In this arrangement, the individual voltages of the cells add up ($V_{total} = V_1 + V_2$), providing the necessary potential difference to drive current through a circuit.
- Parallel connection of both positive terminals. is incorrect: While cells can be connected in parallel (positive to positive and negative to negative) to increase current capacity, the standard sequence described for "forming a battery" to boost voltage is the series connection. Furthermore, connecting only the positive terminals does not constitute a complete circuit connection.
Key Takeaway: In a standard battery formed by cells in series, the positive terminal of one cell is always connected to the negative terminal of the succeeding cell to sum their electromotive forces.