Free physics question bank
Capacitor–Battery Connections & Charge Sharing questions with solutions
Practice Capacitor for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 32 questions
- NumericmediumCapacitor
A capacitor of capacitance C and potential V has energy E. It is connected to another capacitor of capacitance 2 C and potential 2V. Then the loss of energy is (x/3)E, where x is _____ .
JEE Mains 2024 30 Jan Morning Shift
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A capacitor C is charged to V and another capacitor 2C is charged to 2V. Batteries are removed and the capacitors are connected in parallel with positive plate of one to negative plate of the other. The final electrostatic energy is:
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JEE Advanced
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Two conductors have capacitances 2 μF and 5 μF and initial potentials 2 V and 10 V respectively. After connecting them by a wire with like polarity, find the ratio Q₁/Q₂ of their final charges.
JEE Advanced
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A capacitor C is charged to potential V. The electric flux through a closed surface enclosing only the positive plate is:
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JEE Mains11 April 2023Shift 2Evening Shift
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A capacitor is charged by connecting a battery across its plates. It is then disconnected and another identical capacitor is connected across it. Then the energy in both capacitors of the system will be:
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AIPMT 2000NEET Previous Year
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If the potential of a capacitor having capacity 6 μF is increased from 10 V to 20 V, then increase in its energy is:
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AIPMT 1995NEET Previous Year
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A 100 pF capacitor is charged to 60 V and then disconnected from the battery. A second uncharged capacitor is connected in parallel with it. The final common voltage is 20 V. The capacitance of the second capacitor is:
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JEE Mains 2025 3 April Evening Shift
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A 12 pF capacitor is connected to a 50 V battery. The electrostatic energy stored in the capacitor in nJ is:
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NEET 2022NEET Previous Year
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The plates of a parallel plate capacitor are given charges +4Q and -2Q. The capacitor is then connected across an uncharged capacitor of same capacitance as first one (= C). Find the final potential difference between the plates of the first capacitor.
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JEE Advanced
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A capacitor P with capacitance 10 × 10⁻⁶ F is fully charged with a potential difference of 6.0 V and disconnected from the battery. The charged capacitor P is connected across another capacitor Q with capacitance 20 × 10⁻⁶ F. The charge on capacitor Q when equilibrium is established will be α × 10⁻⁵ C (assume capacitor Q does not have any charge initially), the value of α is _______ .
JEE Mains 202622 January Evening Shift
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