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Potential of a big drop formed from n charged small drops

The same question, asked 5 times: 16 May 2023 S2, 20 Apr 2025 S1, 25 Apr 2025 S1, 25 Apr 2025 S2*, 19 Apr 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    16 May 2023 S2

    45
    nn small drops of same size are charged to VV volt each. If they coalesce to form a single large drop, then its potential will be

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  2. Question 2

    20 Apr 2025 S1

    46
    ' nn ' small spherical drops of same size which are charged to ' VV ' volt each coalesce to form a single big drop. The potential of the big drop is

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  3. Question 3

    25 Apr 2025 S1

    49
    'nn' identical small spherical drops of water, each of radius 'rr' and charged to the same potential 'vv' are combined to form a big drop. The potential of the big drop is

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  4. Question 4

    25 Apr 2025 S2

    23
    Assuming the drops to be spherical, 27 identical drops of mercury are charged simultaneously to the same potential of 20 volt. If all the charged drops are made to combine to form one big drop, then potential of big drop will be

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  5. Question 5

    19 Apr 2026 S1

    123
    'nn' small spherical drops of the same size which are charged to 'V' volt each coalesce to form a single big drop. The potential of a big drop is

    Tap an option to check your answer.