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help @electrokid

Gauss's Law is the answer :)
|dw:1366039832463:dw|

actually i know that but a task is given to me to think abt it without using gauss's law.......

so, you are indirectly asked to proove Gauss's Law

please help buddy....

@.Sam.

ok.. look at the denominator of the equation..
rewrite the equation for E using the equation editor

|dw:1366042440302:dw|

that symmetry argument is invalid!~

??????

but how to explain it just by concept of physics... i.e. physically and not mathematically....

Finished drawing here:
|dw:1366043626646:dw|

so value of field at centre is not zero... right????

???

Value at centre is 0 because of symmetries.

are you sure????

but a question is given to me and it is asked that why field at centre is not zero...???

Actually : \(\sigma/2 \epsilon_o\) without the \(\pi\) in the denominator.