JEE Main 2021 Physics question
27 similar drops of mercury are maintained at 10 V each. All these spherical drops combine into a single big drop. The potential energy of the bigger drop is ............ times that of a smaller drop.
Answer: 243
27 similar drops of mercury are maintained at 10 V each. All these spherical drops combine into a single big drop. The potential energy of the bigger drop is ............ times that of a smaller drop.