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JEE Advanced2010PhysicsCurrent ElectricityActual

Consider a thin square sheet of side L and thickness t , made of a material of resistivity . The resistance between two opposite faces, shown by the shaded areas in the figure is

Options

  1. Adirectly proportional to L
  2. Bdirectly proportional to t
  3. Cindependent of L
  4. Dindependent of t

Correct answer

C. independent of L

Step-by-step solution

R= (L) A = L t L = t ie, R is independent of L . Hence the correct option is (c).

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