Final answer:
The voltage of a primary cell is influenced by the materials of the electrodes and the type of electrolyte used, and is not directly affected by the resistance within the circuit.
Step-by-step explanation:
The voltage of a primary cell depends on several factors, including the materials of the electrodes and the type of electrolyte used. For example, in a dry cell, the electrolyte paste contains manganese (IV) oxide, zinc(II) chloride, ammonium chloride, and water, which influences the cell's voltage through its chemical composition. Similarly, the anode and cathode materials significantly affect the voltage; for instance, in a lithium-iodine battery, the lithium metal anode and the solid iodine complex cathode dictate its characteristic voltage. The voltage determines how much electrical pressure is available to push the charge through the circuit, and it is not directly affected by the resistance of the circuit.