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hns.edu/bbcswebdav/pid-1534042-dt-content-rid-9675198 1/courses/PHY-1940-0-10265

ID: 1584106 • Letter: H

Question

hns.edu/bbcswebdav/pid-1534042-dt-content-rid-9675198 1/courses/PHY-1940-0-10265-201810/u ebAssign, Connectufc-gpa-calculator1.1 Undergraduate Rese. Student Worker/Rese D slide!Episode 01 216 kV 8. When a potential difference of 146 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 23.0 nC/cm2. What is the spacing between the plates? 5.62 um 9. A 0.500-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.500mm2. What is the current in the wire? 2.98 10. Four resistors are connected to a battery as shown in the figure below.

Explanation / Answer

Problem 8)

Q = C*V

Q = [(epsilon*A)/d]*146

d= epsilon*(A/Q)*146

d = (8.85*10^-12)*(1/(23*10^-5)*146

d = 5.62*10^-6m = 5.62 um

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