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Three plates A, B and C are placed close...

Three plates A, B and C are placed close to each other with `+Q` charge given to the middle plate. The inner surfaces to A and C can be connected to earth through plate D and keys `K_(1)` and `K_(2)` . The plates D is a dielectric slab with dielectric constant `K_(1)` then the charge that will flow through plate D and keys `K_(1)` and `K_(2)` . The plate D is a dielectric slab with dielectric constant K, then the charge that will flow though plate D when `K_(2)` is closed and `K_(2)` is open is

A

`-Q`

B

`-Q//2`

C

`Q(1-(1)/(K))`

D

`(Q)/(2)(1-(1)/(K))`

Text Solution

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The correct Answer is:
c
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