1.

The electric field on two sides of a thin sheet of charge is shown in the figure. The charge density on the sheet is A. `2epsilon_0`B. `4epsilon_0`C. `10epsilon_0`D. zero

Answer» Correct Answer - B
Let `E` be the external field (toward right). The
`E-sigma/(2epsilon_0) =8`………….i
`E+sigma/(2epsilon_0=12`………..ii
Solving these equations we get `sigma=4epsilon_0`


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