Recreational Vehicle (RV) Technician Practice Test

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Get ready for the RV Technician Exam. Study with flashcards and multiple-choice questions. Each query comes with hints and explanations. Prepare for success!

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What is the current through a resistor of 4.7 ohms at 13.5 volts?

1.5 amps
2.9 amps
3.5 amps
4.7 amps

The correct answer is: 2.9 amps

To determine the current flowing through a resistor when a voltage is applied across it, Ohm's Law is utilized, which states that the current (I) in amperes is equal to the voltage (V) in volts divided by the resistance (R) in ohms. The formula is expressed as: I = V / R. In this scenario, the voltage is 13.5 volts, and the resistance is 4.7 ohms. Plugging these values into the formula yields: I = 13.5 V / 4.7 Ω ≈ 2.87 A. When rounding, this value is approximately 2.9 amps. Therefore, the correct answer accurately reflects the result of applying Ohm's Law to the given values, confirming that the current through the resistor at that voltage is indeed about 2.9 amps.