Question

of the following correctly identifies a voltage source and its method of developing electric potential? a. generator—genetic action b. primary cell—heat action on a device c. thermocouple—chemical action d. dry cell—chemical action

Answer 1

Te dry cell is a voltage source that develops a potential difference between
its terminals because of its internal chemistry. That's choice-d.

Answer 2

Answer;

D. dry cell—chemical action

Explanation;

• A dry-cell is an example of a voltage source which stores energy in an immobilized electrolyte paste, which minimizes the need for water. This chemical energy is what is converted to electrical energy.
• Electrical energy is derived from an irreversible chemical reaction in the dry cell. The chemical reaction generates an EMF when when the chemicals, the two electrodes and an electrolyte are assembled together.