# Up a rectangular slab on the xz plane is im mersed in

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Chapter 23 / Exercise 16
Physics for Scientists and Engineers with Modern Physics
Jewett/Serway
Expert Verified
14.Up.A rectangular slab on thexz-plane is im-mersed in a uniform electric fieldE= +E0ˆas shown in figure. What is the electric fluxthrough the bottom surface?A.-E0s2B.-E0shC.+E0s2D.+E0shSolution:ΦE=E·A
15.My X and Y.ConsiderXandY-shapedclosedsurfaceswithpointchargesQlocated at the corners.What is the electric flux through theoverlapping region?
16.Potential Energy in Field.A charge+q0at positiony0is immersed in an electric fieldE= +2ˆ. What is its potential energy? Usey= 0as a reference position.
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The document you are viewing contains questions related to this textbook.
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Chapter 23 / Exercise 16
Physics for Scientists and Engineers with Modern Physics
Jewett/Serway
Expert Verified
First Long ExamSecond Semester, AY 2016–2017Physics 7217.TriCharge.Three charges, coming from infinity, are placed on the corners of an equilateraltriangle with a side of lengthd. If two of the charges are+qand one charge is-q, howmuch work by an external force is required to assemble them?
18.Think about your X.Three charges are on the cornersof a rectangle as shown. What is the value of the electricpotential at point X?A.-9.00×103VB.-8.55×103VC.-7.11×103VD.+1.30×104VSolution:V=Xikqiri=k-10×10-95×10-2+-30×10-93×10-2+10×10-94×10-2=-8.55×103Nm/C(1)other choices: magnitudes only1.30×104Nm/Cdiagonal is 25cm-7.11×103Nm/Ccharges with equal magnitude contribute zero
19.Four You, I’ll Change.In a region of space, the electric potential is given byV(x, y) =4 exp(x-y). What is the electric field due to this electric potential?
First Long ExamSecond Semester, AY 2016–2017Physics 72
20.Sphere-Shell.A metal sphere of radiusR, is surrounded bya concentric metal shell of inner radiusaand outer radiusbas shown. Which of the following charge combinations willlead to a minimum potential value at the center? Use infinityas a reference position.ChoiceSphere (nC)Shell (nC)A+50B-10C0+5D0-1
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First Long ExamSecond Semester, AY 2016–2017Physics 72