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    Keeping the potential difference constant, the resistance of a circuit is doubled. What happens to the current?
    Question

    Keeping the potential difference constant, the resistance of a circuit is doubled. What happens to the current?

    A.

    It becomes one-fourth

    B.

    It gets doubled

    C.

    It becomes four times

    D.

    It gets halved

    Correct option is D

    The correct answer is (d) It gets halved.
    According to Ohm's Law, the relationship between voltage (V), current (I), and resistance (R) is given by the formula: I
    · If the potential difference (voltage) remains constant and the resistance is doubled, the current through the circuit will decrease proportionally.
    · Specifically, when the resistance is doubled, the current is halved because current is inversely proportional to resistance.
    Key Points:
    · Ohm's Law: I=VR​, where I is current, V is voltage, and R is resistance.
    · Doubling resistance: Results in halving the current when voltage is kept constant.

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