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JEE Main 8 Jan 2020 Shift 1 Solved Paper

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Question : 9

Total: 75

In finding the electric field using Gauss Law the formula |

is applicable. In the formula s0 is permittivity of free space, A is the area of Gaussian surface and qenc is charge enclosed by the Gaussian surface. The equation can be used in which of the following situation?

Only when the Gaussian surface is an equipotential surface.
Only when |
→
E
| = constant on the surface.
For any choice o f Gaussian surface.
Only when the Gaussian surface is an equipotential surface and |
→
E
| is constant on the surface.

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