The resistance of a length of wire is given by where k is a constant. L is
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The resistance of a length of wire is given by
where k is a constant. L is increasing at a rate of 0.4% min−1, ρ is increasing at a rate of 0.01% min−1 and D is decreasing at a rate of 0.1% min−1. At what percentage rate is the resistance R increasing?
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R = kpL D
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hence SO AR R AR AR R x 100 R R R ...View the full answer
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