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Physics - Capacitor Question with Solution | TestHub

PhysicsCapacitorCircuit AnalysisMedium2 minPYQ_2010

PhysicsMediumsingle choice

Three capacitors of capacitances $1 μ F, 2 μ F$ and $4 μ F$ are connected first in a series combination, and then in a parallel combination. The ratio of their equivalent capacitances will be

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In series combination, $\frac{1}{C _{1}} = \frac{1}{1} + \frac{1}{2} + \frac{1}{4} = \frac{4 + 2 + 1}{4} = \frac{7}{4}$ $\Rightarrow C_{1} = \frac{4}{7} μ F$ In parallel combination, $∴ C_{1} = 1 + 2 + 4 = 7 μ F \frac{C _{1}}{C _{2}} = \frac{4/7}{7} = \frac{4}{49}$

Stream:JIPMERSubject:PhysicsTopic:CapacitorSubtopic:Circuit Analysis

⏱ 2mℹ️ Source: PYQ_2010

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