Which of the following is true regarding current and voltage?

Which of the following is true regarding current and voltage?

• A. Current is the potential energy difference between two charged terminals.
• B. Voltage is the flow of electric charge.
• C. Voltage is the potential energy difference between two charged terminals.
• D. Current cannot exist without voltage.

Answer: (C)

The statement that voltage is the potential energy difference between two charged terminals accurately defines the concept of voltage in electrical systems. Voltage, also known as electric potential difference, is a measure of the work needed to move a charge from one point to another against an electric field. It represents the potential energy per unit charge, which is essential for the flow of current in a circuit. When voltage is present, it creates an electric field that pushes charged particles, allowing them to move and create an electric current. This essential concept is foundational in understanding how electrical circuits operate. Therefore, recognizing the true nature of voltage as potential energy difference helps clarify its role in generating and sustaining current flow. The other statements may misrepresent the relationship between current and voltage, but the correct answer clearly establishes a necessary electrical principle.

The statement that voltage is the potential energy difference between two charged terminals accurately defines the concept of voltage in electrical systems. Voltage, also known as electric potential difference, is a measure of the work needed to move a charge from one point to another against an electric field. It represents the potential energy per unit charge, which is essential for the flow of current in a circuit.

When voltage is present, it creates an electric field that pushes charged particles, allowing them to move and create an electric current. This essential concept is foundational in understanding how electrical circuits operate. Therefore, recognizing the true nature of voltage as potential energy difference helps clarify its role in generating and sustaining current flow.

The other statements may misrepresent the relationship between current and voltage, but the correct answer clearly establishes a necessary electrical principle.