NEET · Physics · STD 12 - 2. Electric potential and capacitance
Twenty seven drops of same size are charged at \(220\, \mathrm{~V}\) each. They combine to form a bigger drop. Calculate the potential of the bigger drop. (In \(\mathrm{~V}\))
- A \(1980\)
- B \(1320\)
- C \(1520\)
- D \(660\)
Answer & Solution
Correct Answer
(A) \(1980\)
Step-by-step Solution
Detailed explanation
\({V}_{\mathrm{B}}=\mathrm{N}^{2 / 3}\, \mathrm{~V}_{\mathrm{S}}\) \(\mathrm{V}_{\mathrm{B}}=(27)^{2 / 3} \times 220\)
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