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An electrical circuit is shown in the given figure. The resistance of each voltmeter is infinite and ech ammeter is `100Omega`. The charge on the cpacitor of `100muF` in steady staste is `4mC`. Chose correct statement(s) regarding the given circuit. A. Reading of voltmeter `V_2 is 16`B. Reading of ammeter `A_1` is zero and `A_2` is `1/25A`C. Reading of voltmeter `V_1` is `40 V`D. Emf of the ideal cell is `66 V` |
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Answer» Correct Answer - B::C::D In steady state current through capacitor wire is zero. Current flows `200Omega, 900Omega` and `A_2`. `V_C=q/C=(4xx10^-3)/(100xx10^-6)` `=40V` This is also potential drop across `900Omega` resistance and `100Omega` ammeter `A_2` (Total resistance `=1000Omega`). Now, this `1000Omega` and `200Omega` are in series. Therfore, `V_2=V_(200Omega)=V_(1000Omega)/5` `40/5=8V` `Emf=V_(1000Omega)+V_(200Omega)=48V` `i=("Emf")/("Net resistance")` `=48/1200=1/25A` |
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