Physics-
General
Easy

Question

Four plates of equal area A are separated by equal distance d and are arranged as shown in the figure. The equivalent capacity is

  1. fraction numerator 2 epsilon subscript 0 end subscript A over denominator d end fraction    
  2. fraction numerator 3 epsilon subscript 0 end subscript A over denominator d end fraction    
  3. fraction numerator 3 epsilon subscript 0 end subscript A over denominator 2 d end fraction    
  4. fraction numerator epsilon subscript 0 end subscript A over denominator d end fraction    

The correct answer is: fraction numerator 2 epsilon subscript 0 end subscript A over denominator d end fraction


    The given circuit is equivalent to a parallel combination of two identical capacitors.

    Hence, equivalent capacitance between points A a n d blank B is
    C equals fraction numerator epsilon subscript 0 end subscript A over denominator d end fraction plus fraction numerator epsilon subscript 0 end subscript A over denominator d end fraction equals fraction numerator 2 epsilon subscript 0 end subscript A over denominator d end fraction

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