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Find the cross-sectional area of copper wire that is 55.4 m long and has a resistance of 0.943 ohms. The resistivity of copper is 1.79 x 10^-8 ohms m.

  • physics -

    resistance= resistity*length/area
    solve for area.

    Are you answer grazing? THese are extraordinary simple problems, yet you submit no work, asking the questions.

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