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In an oscillating LC circuit the maximum charge on the capacitor is Q. The charges on the capacitor when the energy is stored equally between the electric and magnetic field isA. `Q/(sqrt(2))`B. QC. `Q/(sqrt(3))`D. `Q/2` |
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Answer» Correct Answer - A Let Q be the maximum charge on the capacitor and the maximum energy `E = 1/2 (Q^2)/C`. When it is equally shared between the eleclric and magnetic fields, the energy stored in the capacitor = `1/2 [1/2 (Q^2)/(C)]` In this case , If q is the charge on the capacitor, then `1/2 (q^2)/(C) = 1/2 [1/2 (Q^2)/C]`. `q^(2) = (Q^2)/C :. q=Q/(sqrt2)`. |
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