Question

Wally's Technical Fabricators is the world's principal supplier of axial resistive pipe. These pipes have a perfectly conductive inner core, p a, and a perfectly conductive outer sleeve, ρ b, and the region where a < ρ < b s filed with a realistic conductor with known conductivity σ Wallys sta will cut the pipe to whatever length the client requires. Wally's business is so old that the website is dreadful. The datasheet on his main product is a smudged PDF scan from which all one can learn is the following . a=10 cm. · b=22 cm, σ 24.2 Ω 1/m, and I 77.5 A is the steady current measured for a 100.0 mm length of piping, when a suitable voltage source is connected between the inner core and the outer sleeve (a) Find the voltage drop across the conducting shells in the experiment described on the datasheet. ANSWER: IAVI (b) Find the resistance between the conducting shells in the experiment described on the datasheet. ANSWER: R c) Suppose you need an axial resistive pipe whose resistance is 0 00 91388 S. Find the length you should order. ANSWER: L =