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7 February, 23:30

A 1.5m wire carries a 6 A current when a potential difference of 70 V is applied. What is the resistance of the wire?

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  1. 8 February, 01:59
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    From Ohm's law: R = V / I

    Resistance = (voltage) / (current)

    Resistance = (70 volts) / (6 Amperes)

    Resistance = 11.67 ohms

    (We don't need to know the length, thickness, color, or cost of the wire.)
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