Subelement I: Power Sources— Topic 60: Batteries-1
Question 3-60I6
Element 3 (GROL)A nickel-cadmium cell has an operating voltage of about:
Explanation
Nickel-cadmium (NiCd) cells, due to their specific internal chemistry involving nickel and cadmium electrodes with an alkaline electrolyte, produce a nominal operating voltage of approximately 1.25 volts per cell. This voltage remains relatively stable over a large portion of their discharge cycle.
Options B, C, and D are incorrect because they represent the nominal voltages of different battery chemistries:
* **1.4 volts** is close to the peak charging voltage for NiCd, but not its nominal operating voltage.
* **1.5 volts** is the common nominal voltage for alkaline or carbon-zinc cells.
* **2.1 volts** is the nominal voltage for a single lead-acid cell.
Related Questions
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