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JEE Main 2017 Physics question

PhysicsElectrostatic Potential and CapacitanceJEE Main 2017

A capacitance of 2 μF is required in an electrical circuit across a potential difference of 1.0 kV. A large number of 1μF capacitors are available which can withstand a potential difference of not more than 300 V. The minimum number of capacitors required to achieve this is :

Answer: (D)

Solution

At least 4 capacitors are needed in series (4 × 300 V ≥ 1000 V), giving

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Question ID VK-008952