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JEE Main 2024 Physics question

PhysicsElectrostatic Potential and CapacitanceJEE Main 2024

A 16 Ω wire is bend to form a square loop. A 9 V battery with internal resistance 1 Ω is connected across one of its sides. If a 4 μF capacitor is connected across one of its diagonals, the energy stored by the capacitor will be μ J. Where x = .

Answer: 81

Solution

Each side is 4 Ω. The side across the battery (4 Ω) is in parallel with the other three sides (12 Ω): R = 3 Ω, so the total resistance is 3 + 1 = 4 Ω and the battery current is

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Question ID VK-016862