What symbol represents voltage in formulas?

• A. V
• B. E
• C. I
• D. P

Answer: (A)

Voltage is represented by the symbol "V" in formulas, which comes from the term "volt," the unit of measurement for electric potential. Understanding that voltage is a measure of electrical potential energy per unit charge is key. It dictates how much electrical energy is available to drive the flow of current through a circuit.

Other symbols in electrical formulas represent different quantities: "E" commonly denotes electromotive force or energy, "I" stands for current, which measures the flow of electric charge, and "P" signifies power, the rate at which electrical energy is consumed or generated in a circuit. Recognizing these distinctions is crucial for effectively interpreting and solving electrical equations.