MCQOPTIONS
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MCQOPTIONS
| 1. |
The electric charge required to expand a soap bubble to twice its dimension is |
| A. | \[8\pi \sqrt{{{\in }_{0}}\,{{r}^{3}}(7\Pr +12T)}\] |
| B. | \[8\pi \sqrt{{{\in }_{0}}{{r}^{2}}(7\Pr +12T)}\] |
| C. | \[8\pi \sqrt{{{\in }_{0}}{{r}^{3}}(6\Pr +12T)}\] |
| D. | \[\ell \] |
| Answer» B. \[8\pi \sqrt{{{\in }_{0}}{{r}^{2}}(7\Pr +12T)}\] | |