Recreational Vehicle (RV) Technician Practice Test

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Prepare for the RV Technician Test with our quiz. Utilize flashcards and multiple-choice questions, complete with hints and explanations. Achieve success in your exam!

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What is the resistance in a 12 VDC, 6A circuit?

  1. 1 ohm

  2. 2 ohms

  3. 3 ohms

  4. 4 ohms

The correct answer is: 2 ohms

To find the resistance in a circuit, Ohm's Law is applied, which states that voltage (V) equals current (I) multiplied by resistance (R), expressed in the formula V = I * R. Rearranging this formula to solve for resistance gives us R = V / I. In this scenario, the voltage is 12 volts and the current is 6 amperes. Plugging these values into the rearranged formula results in: R = 12 V / 6 A = 2 ohms. Thus, the calculated resistance for this circuit is 2 ohms. This correct calculation reflects the proper application of Ohm's Law, ensuring that the relationship between voltage, current, and resistance is accurately understood.