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Find the resistivity of a material having resistance 20kohm, area 2 units and length of 12m.(a) 6666.6(b) 3333.3(c) 1200(d) 2000This question was addressed to me by my college professor while I was bunking the class.This key question is from Resistances and Capacitances topic in chapter Electrostatic Boundary Value Problem of Electromagnetic Theory |
Answer» CORRECT answer is (b) 3333.3 To elaborate: The resistance of a MATERIAL is given by R = ρL/A. To GET ρ, put R = 20 x 10^3, A = 2 and L = 12. We get ρ = 3333.3 units. |
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