ESA Certified Alarm Technician Practice Exam

Current is measured in _____________.

1. Volts

2. Watts

3. Amperes

4. Ohms

The correct answer is: Amperes

The measurement of current is represented in amperes, which are often abbreviated as "amps." Current refers to the flow of electric charge in a circuit, and amperes quantify this flow. Understanding that current is directly linked to the movement of electrons helps clarify why amperes are used in this context. The term "volts" represents voltage, which is the electrical potential difference that drives the current. "Watts" measure power, which is the rate at which energy is consumed or produced in a circuit, while "ohms" are units of resistance that quantify how strongly a device opposes the flow of current. Thus, amperes are the correct unit for measuring current specifically, making this answer accurate in the context of electrical measurements.