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AP EAMCET2004PhysicsCurrent Electricity

n conducting wires of same dimensions but having restivities 1,2,3, . . n are connected in series. The equivalent resistivity of the combination is

Options

  1. A1 n(n+1) 2
  2. Bn+1 2
  3. Cn+2 2 n
  4. D2 n n+1

Correct answer

A. 1 n(n+1) 2

Step-by-step solution

Resistivity of the combination aligned =(1+2+3+ +n) = n(n+1) 2 aligned

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