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Energy stored in series compared with parallel combinations

This type of question, asked 7 times: 9 May 2023 S2, 16 May 2023 S1, 9 May 2024 S1, 22 Apr 2025 S1, 15 Apr 2026 S1, 17 Apr 2026 S1, 18 Apr 2026 S2. All 7 questions below, oldest first.

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  1. Question 1

    9 May 2023 S2

    29
    The potential difference that must be applied across the series and parallel combination of 4 identical capacitors is such that the energy stored in them becomes the same. The ratio of potential difference in series to parallel combination is

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  2. Question 2

    16 May 2023 S1

    40
    A series combination of n1n_1 capacitors, each of value C1C_1 is charged by a source of potential difference 6 V. Another parallel combination of n2n_2 capacitors, each of value C2C_2 is charged by a source of potential difference 2 V. Total energy of both the combinations is same. The value of C2C_2 in terms of C1C_1 is

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  3. Question 3

    9 May 2024 S1

    6
    The ratio of potential difference that must be applied across parallel and series combination of two capacitors C1C_1 and C2C_2 with their capacitances in the ratio 1:21:2 so that energy stored in these two cases becomes same is:

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  4. Question 4

    22 Apr 2025 S1

    10
    A series combination of 10 capacitors, each of value ' C1C_{1} ' is charged by a source of potential difference ' 4 V '. When another parallel combination of 8 capacitors, each of value ' C2C_{2} ' is charged by a source of potential difference ' V ', it has the same total energy stored in it as in the first combination. The value of ' C2C_{2} ' is

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  5. Question 5

    15 Apr 2026 S1

    126
    The potential difference that must be applied across the parallel and series combination of three identical capacitors such that the energy stored in them becomes the same. The ratio of potential difference in parallel to series combination is

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  6. Question 6

    17 Apr 2026 S1

    128
    Two capacitors, C1C_1 and C2C_2 have their capacitances in the ratio 1:2. VsV_s and VpV_p are the potential differences applied across the series and parallel combination of C1C_1 and C2C_2 respectively, so that the energy stored in the two cases becomes same. The ratio VsV_s to VpV_p is

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  7. Question 7

    18 Apr 2026 S2

    128
    Three identical capacitors connected in series have net capacitance 'xx'. Then they are connected in parallel. The ratio of energy stored in series configuration to that in parallel configuration is (if both configurations are connected to the same source)

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