Electronic Technician (ET) Apprentice Technical Training (ATT) Comprehensive Practice Test

What is Ohm's Law?

The relationship between voltage, current, and resistance expressed as V=IR The formula for calculating power in a circuit The principle that current can only flow in a closed circuit The law governing magnetic fields around a conductor

Correct Answer:

The relationship between voltage, current, and resistance expressed as V=IR

Explanation:

Ohm's Law describes the fundamental relationship between voltage, current, and resistance in an electrical circuit. It states that the voltage across a conductor is directly proportional to the current flowing through it, with the resistance acting as the proportionality constant. This is mathematically expressed as V=IR, where V is the voltage in volts, I is the current in amperes, and R is the resistance in ohms. Understanding this relationship is crucial for analyzing and designing electrical circuits, as it helps in calculating how much current will flow at a given voltage and resistance. This foundational concept is essential for any electronic technician, as it offers a basis for troubleshooting and developing practical applications in electronics.

Access more questions from this quiz

Continue to Electronic Technician (ET) Apprentice Technical Training (ATT) Comprehensive Practice Test for more practice questions and the full quiz experience.

Access More Questions