In a Faraday Ice Pail... the inner cylinder is the conductor and the outer cylin

Question

In a Faraday Ice Pail... the inner cylinder is the conductor and the outer cylinder is a sheild that serves as a grounded reference for measureing potential different and prevents outside charges from affecting the readings. If you think about the pail and sheild as two plates of a capcitor...

If you completely remove all charge from charge producing wands, and insert ethem into the pail and begin to rub them together...

Using charge conservation and induced chrages to explain what you observed when rubbing the wands together inside the pail?

Explanation / Answer

as one of the plates of the capacitor is grounded, whenever there is an induced charge in this plate, the -ve charge will flow to the ground, or flow tro the plate
When the wands are inserted in the arrangement and began to rub, they start having opposite charges. This induction produces induced charge of opposite magnitude on the inner cylinder, and then the outer cylinder has the opposite charge to the inner cylinder ( same as the charged rod) as it is grounded and has free supply of extra electrons ( or a sink for the extra electrons)

but as both the wands were neutral before being inserted into this arrangement, the total charg on the wands is 0, and hence the total induced charge on the inner plate will be 0 over time and so would be the induced chjarge on the outer plate.

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