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Two large parallel conducting plates are...

Two large parallel conducting plates are placed close to each other ,the inner surface of the two plates have surface charge densities `+sigma` and `-sigma` .The outer surfaces are without charge.The electric field has a magnitude of

A

`(sigma)/(epsilon_(0))` in the region between the plates

B

`(sigma)/(epsilon_(0))` in the region outside the plates.

C

`(2sigma)/(epsilon_(0))` in the region between the plates

D

zero in the region outside the plates.

Text Solution

Verified by Experts

The correct Answer is:
A,D

`E_(p)=-(sigma)/(2epsilon_(0))+(sigma)/(2epsilon_(0))=0E_(Q)=(sigma)/(2epsilon_(0))-(sigma)/(2epsilon_(0))=0`
`E_(Q)=(sigma)/(2epsilon_(0))+(sigma)/(2epsilon_(0))=(sigma)/(epsilon_(0))`
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Knowledge Check

  • Two large metal plates are placed parallel to each other The inner surfaces of plates are charge by +sigmaand-sigma(Cm^(-2)) The outer surfaces are neutral .The electric field in the negion between the plates and outside the plates is

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    B
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    C
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