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3.In an R-C circuit R=15k Omega battery ...

3.In an R-C circuit R=15k Omega battery emf =24V and time constant tau=24 mu s .Then (A) total capacitance of circuit is 1.6times10^(-9)F (B) time taken by voltage across resistor to reach 16V is more than 10 mu s (C) total capacitance of circuit is 2.8times10^(-9)F (D) time taken by voltage across resistor to reach 16V is less than 10 mu s

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