Answered: The "lead" in your pencil is actually… | bartleby

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The "lead" in your pencil is actually graphite, a form of carbon. If the 0.7mm diameter "lead" was
actually made out of uranium and was 4.1 cm long, what would be it's resistance in 2 at 98 degrees
C?
(uranium resistivity p = 2.8 x 10^-7 Qm at 20 C and a = -2.61 x 10^-3 C^-1)

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