The drum of a photocopying machine has a length of 42 cm and adiameter of 12 cm. The electric field just above the drum's surfaceis 2.3x105 N/C. What is the total charge on thedrum?
b) The manufacturer wishes to produce a desktop version of themachine. This requires reducing the drum length to 28 cm and thediameter to 8.0 cm. The electric field at the drum surface must notchange. What must be the charge on this new drum?
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The drum of a photocopying machine has a length of 42 cm and adiameter of 12 cm. The electric field...
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