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    The potential difference across a copper wire is 5.0 V when a current of 0.5 A flows through it. The resistance of the wire is:
    Question

    The potential difference across a copper wire is 5.0 V when a current of 0.5 A flows through it. The resistance of the wire is:


    A.

    2.5Ω


    B.

    0.1 Ω


    C.

    5.0 Ω


    D.

    10.0 Ω

    Correct option is D

    The correct answer is (D)   ​10.0 Ω

    Given:

    • Potential difference (V) = 5.0 A
    • Current (I) = 0.5 A

    Formula used:
    Ohm's Law states that  V = I × R

    • is the potential difference,
    • I is the current,
    • is the resistance.

    Solution:
    R = V/I

    R = 5/0.5

    R = 10.0 Ω

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