A conductor with rectangular cross section has dimensions (a×2a×4a) as shown in figure. Resistance across AB is x, across CD is y and across EF is z. Then

Engineering

Physics

SI Units

Ohm Law and Current Basics

Conductor

Question

A conductor with rectangular cross section has dimensions (a×2a×4a) as shown in figure. Resistance across AB is x, across CD is y and across EF is z. Then

x > y > z

y > x > z

x = y = z

x > z > y

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$R_{AB} = \frac{ρ \times 4 a}{2 a^{2}} R_{CD} = \frac{ρ \times a}{8 a^{2}} R_{EF} = \frac{ρ \times 2 a}{4 a^{2}}$
x > z > y