Laser Technician IBEC Board Exam 2025 - Free International Board of Electrologist Certification Practice Questions.

The unit of electrical strength is referred to as a Volt. This unit measures the electric potential difference, which indicates how much potential energy exists to move electric charge through a circuit. Essentially, it quantifies the force that pushes electric charges through a conductor.

In the context of electrical strength, it is crucial to understand that as the electric potential increases, the capacity for an electrical current to overcome resistance in a circuit also increases. Thus, Volts represent the strength of the electrical force that can be exerted.

The other units mentioned relate to different aspects of electricity; for example, Watt measures power, which is the rate of energy transfer, while Ampere refers to the flow of electric current. Ohm is the unit used to measure resistance in a circuit. Each of these units plays a different role in electrical circuits, but when discussing electrical strength specifically, the Volt is the appropriate measurement.