What term describes electrical pressure from a power source such as a battery?

• A. Current
• B. Voltage
• C. Resistance
• D. Capacitance

Answer: (B)

The term that describes electrical pressure from a power source, such as a battery, is voltage. Voltage can be thought of as the force that pushes electric charges through a circuit. It represents the potential difference between two points in an electrical system. When a battery is connected in a circuit, it creates a voltage that drives the flow of current, allowing electrical devices to function.

Current refers to the actual flow of electric charge in a circuit, while resistance measures how much a material opposes that flow. Capacitance relates to the ability of a component, such as a capacitor, to store electrical energy. Understanding voltage is crucial in grasping the basics of how electrical systems operate.