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Four identical capacitors each of capacitance C are joined in series to a battery of potential difference 10v.The midpoint of the capacitor system is grounded.The potentials at the point A and B are respectively.

Asked by sandhyamsani 15th May 2017, 4:45 PM
Answered by Expert
Answer:
begin mathsize 12px style Let space the space charge space on space each space capacitor space be space straight q space and space the space potential space at space point space straight N space be space straight V subscript straight N
rightwards arrow straight q over straight C space plus space straight q over straight C space plus space space straight q over straight C space plus space straight q over straight C
or space space straight q over straight C space equals space 2.5 space straight V
straight V subscript straight A space minus space straight V subscript straight N space equals space straight q over straight C space plus space straight q over straight C
or space straight V subscript straight A space minus space 0 space equals space 2.5 space plus space 2.5
therefore space bold V subscript bold A bold space bold space bold equals bold space bold 5 bold space bold V
straight V subscript straight N space minus space straight V subscript straight B space equals space straight q over straight C space plus space straight q over straight C
0 space minus space straight V subscript straight B space equals space 2.5 space plus space 2.5
or space bold V subscript bold B bold space bold equals bold minus bold space bold 5 bold V end style
Answered by Expert 16th May 2017, 12:19 PM
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