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?

Transcribed Image Text:

R = kpL D