Physics-
General
Easy

Question

A number of capacitors, each of equal capacitance C, are arranged as shown in Fig. The equivalent capacitance between A and B is

  1. n to the power of 2 end exponent C    
  2. open parentheses 2 n plus 1 close parentheses C    
  3. fraction numerator open parentheses n minus 1 close parentheses n over denominator 2 end fraction C    
  4. fraction numerator open parentheses n plus 1 close parentheses n over denominator 2 end fraction C    

The correct answer is: fraction numerator open parentheses n plus 1 close parentheses n over denominator 2 end fraction C

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A 20μF capacitor is connected to 45 V battery through a circuit whose resistance is 2000Ω. What is the final charge on the capacitor?

physics-General
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