10th Class Science Sample Paper Science Olympiad Model Test Paper-18

  • question_answer
    What would be the resistance of a new wire when area of cross section of a wire is doubled and its length remains the same?

    A) The resistance of the new wire becomes one third of the wire.

    B) The resistance of both the wires becomes same.

    C) The resistance of the new wire becomes one fourth of the wire.

    D)  The resistance of the new wire becomes half of the wire.

    E)  None of these

    Correct Answer: D


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