Three metallic plates out of which the middle is given charge Q as shown in the figure. The outer plates can be earthed with the help of switches S_1 and S_2 . The area of each plates is the same. Answer the following question based on the given passage. The charge that will flow to the earth through S_2 when both switches S_1 and S_2 are grounded simultaneously is

Three metallic plates out of which the middle is given charge Q as sho

1.	Three metallic plates out of which the middle is given charge Q as shown in the figure. The outer plates can be earthed with the help of switches S_1 and S_2 . The area of each plates is the same. Answer the following question based on the given passage. The charge that will flow to the earth through S_2 when both switches S_1 and S_2 are grounded simultaneously is
Answer» `Q` `-Q` `3Q//4` `Q//4` Solution : `((Q-q))/(epsilon_(0)A)3D=(QD)/(epsilon_(0)A)` or `q=(3Q)/(4)`

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