A nervous physicist worries that the two metal shelves of his wood frame bookcase might obtain a high voltage if charged by static electricity, perhaps produced by friction. (a) What is the capacitance of the empty shelves if they have area 1.00 x 102 m2and are 0.200 m apart? (b) What is the voltage between them if opposite charges of magnitude 2.00 nC are placed on them? (c) Toshow that this voltage poses a small hazard, calculate the energy stored.
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A nervous physicist worries that the two metal shelves of his wood frame bookcase might obtain a high voltage if charged by static electricity, perhaps produced by friction.
(a) What is the capacitance of the empty shelves if they have area 1.00 x 102 m2and are 0.200 m apart?
(b) What is the voltage between them if opposite charges of magnitude 2.00 nC are placed on them?
(c) Toshow that this voltage poses a small hazard, calculate the energy stored.
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