New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A 60 W lightbulb is connected to a 120V power source.

    What is the resistance of the bulb?
    A 240 ohms Correct Answer Incorrect Answer
    B 120 ohms Correct Answer Incorrect Answer
    C 60 ohms Correct Answer Incorrect Answer
    D 2 ohms Correct Answer Incorrect Answer

    Solution

    The resistance is given by P=V2/RP = V2 / R

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