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 drawn from a 120V source by a 3KW heating element?

The correct answer is: 25A

To find the current drawn from the 120V source by a 3KW (3000 watts) heating element, you can use the formula that relates power, voltage, and current, represented as: \[ \text{Power (P)} = \text{Voltage (V)} \times \text{Current (I)} \] Rearranging this formula to solve for current gives: \[ I = \frac{P}{V} \] Substituting the known values into the equation: \[ I = \frac{3000W}{120V} \] Simplifying this equation: \[ I = 25A \] Thus, the correct choice is that the current drawn is 25A, as calculated. This indicates that when a 3KW heating element operates at a voltage of 120V, it consumes a current of 25 amperes, which corresponds to the principle that as either the power increases or the voltage decreases, the current must adjust accordingly to maintain the relationship stated in the power formula.