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Safari File Edit View History Window Help WileyPLUS: ywileyPLUS 1 Help I Contact UsI Log Out Halliday, Fundamentals of Physics, 10e GENERAL ANALYTICAL PHYSICS (PHYS 211 & 212) tice Assignment Gradebook ORION Downloadable eTextbook ment FULL SCREEN PRINTER VtRst0N ·BACK NEXT Chapter 23, Problem 018 The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.2x 105 N/C. What is the surface charge density on the drum, assuming that the drum is a conducto? Number Units The number of significant digits is set to 2; the tolerance is +/-1 in the 2nd significant digit Question Attempts: o of 7 used SAVE FOR LATER SUBMIT ANSWER moresio ohn Wiley & onsIec. All Rights Reserved. A Division of 2oho Wey&Sgns.; les i ? 2000:201notny itr-asens.bs Reserved. A 5 MacBook Air esc F5 F7

Explanation / Answer

Given,

Electric field, E = 2.2 *10^ 5 N/C

From Gauss law,

Surface charge density, ?    = E ? = (2.2*10^5)(8.854*10^-12) = 1.947 * 10^-6 C/m^2

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