A small sheet of aluminium foil measuring 2×2 cm is charged by rubbing it on some plastic material. The charge on the small sheet of aluminium foil is then measured and found to be +Q. An uncharged sheet of gold foil measuring 4×4 cm is brought close to, but not touching, the sheet of aluminium. (a) What is the total charge on the sheet of aluminium? (b) What is the total charge on the sheet of gold? The gold foil and aluminium foil are now allowed to touch before being separated again. (c) What is the total charge on the sheet of aluminium now? (d) What is the total charge on the sheet of gold now? (Note: both aluminium and gold are good conductors)

Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter24: Gauss’s Law
Section: Chapter Questions
Problem 24.46P: A thin, square, conducting plate 50.0 cm on a side lies in the xy plane. A total charge of 4.00 108...
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23.5 A small sheet of aluminium foil measuring 2×2 cm is charged by rubbing it on some plastic material. The charge on the small sheet of aluminium foil is then measured and found to be +Q. An uncharged sheet of gold foil measuring 4×4 cm is brought close to, but not touching, the sheet of aluminium. (a) What is the total charge on the sheet of aluminium? (b) What is the total charge on the sheet of gold? The gold foil and aluminium foil are now allowed to touch before being separated again. (c) What is the total charge on the sheet of aluminium now? (d) What is the total charge on the sheet of gold now? (Note: both aluminium and gold are good conductors)
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