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Three infinitely long charge sheets are ...

Three infinitely long charge sheets are placed as shown in figure. The electric field at point P is

A

`(2 sigma)/(epsilon_0) hatk`

B

`-(2 sigma)/(epsilon_0) hatk`

C

`(4 sigma)/(epsilon_0) hatk`

D

`-(4 sigma)/(epsilon_0) hatk`

Text Solution

Verified by Experts

The correct Answer is:
B
`E_P=(sigma)/(2epsilon_0) +((2sigma)/(2epsilon_0))+(sigma)/(2epsilon_0)=(4sigma)/(2epsilon_0)`
`vecE_P=(4sigma)/(2epsilon_0)(-hatk)=(-2sigma)/(epsilon_0)(hatk)`
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