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Question Number 28852 by tawa tawa last updated on 31/Jan/18

Testing of a Bakelite sample by schering Bridge having a standard capacitor  of  106pF ,  balance was obtained with a capacitance of   0.351 F  in parallel  with non - inductive resistance in the remaining arm of the bridge being   130 Ω.  Determine the capacitance and the equivalent series resistance of the specimen  and draw the circuit diagram.

$$\mathrm{Testing}\:\mathrm{of}\:\mathrm{a}\:\mathrm{Bakelite}\:\mathrm{sample}\:\mathrm{by}\:\mathrm{schering}\:\mathrm{Bridge}\:\mathrm{having}\:\mathrm{a}\:\mathrm{standard}\:\mathrm{capacitor} \\ $$$$\mathrm{of}\:\:\mathrm{106pF}\:,\:\:\mathrm{balance}\:\mathrm{was}\:\mathrm{obtained}\:\mathrm{with}\:\mathrm{a}\:\mathrm{capacitance}\:\mathrm{of}\:\:\:\mathrm{0}.\mathrm{351}\:\mathrm{F}\:\:\mathrm{in}\:\mathrm{parallel} \\ $$$$\mathrm{with}\:\mathrm{non}\:-\:\mathrm{inductive}\:\mathrm{resistance}\:\mathrm{in}\:\mathrm{the}\:\mathrm{remaining}\:\mathrm{arm}\:\mathrm{of}\:\mathrm{the}\:\mathrm{bridge}\:\mathrm{being}\:\:\:\mathrm{130}\:\Omega. \\ $$$$\mathrm{Determine}\:\mathrm{the}\:\mathrm{capacitance}\:\mathrm{and}\:\mathrm{the}\:\mathrm{equivalent}\:\mathrm{series}\:\mathrm{resistance}\:\mathrm{of}\:\mathrm{the}\:\mathrm{specimen} \\ $$$$\mathrm{and}\:\mathrm{draw}\:\mathrm{the}\:\mathrm{circuit}\:\mathrm{diagram}. \\ $$

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