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Introductory Physics Homework Help
Electric potential of electron
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[QUOTE="w3dnesday, post: 5136100, member: 557527"] [h2]Homework Statement [/h2] An electron is placed in an [I]xy[/I] plane where the electric potential depends on [I]x[/I] and [I]y[/I] as shown in the figure (the potential does not depend on [I]z[/I]). The scale of the vertical axes is set by[I]Vs[/I] = 500 V. In unit-vector notation, what is the electric force on the electron? [PLAIN]https://www.facebook.com/photo.php?fbid=1403786173283706&set=a.1403786203283703.1073741827.100009570105613&type=1[/PLAIN] [h2]Homework Equations[/h2][h2]The Attempt at a Solution[/h2] I tried evaluating the graph and seeing as it is a straight line for both the x and y components of the E field i was thinking i could get a partial derivative ∂V/∂x=-(-500v/0.4m)=1250N/C ∂V/∂y=-(100V/.4m)=-250N/C I think this is where i went wrong. anyhow, I went on to find the magnitude and direction of the E field |E|=√(1250^2+250^2)=1274.75N/C θ=tan^-1(-250/1250)=-11.31° the next step given the force on an electron as F=qE finding this for the separate components in vector notation give q=1.6*10^-19C so F=(1.6*10^-19C)*[(1250N/Ci), (-250N/Cj)] it is not the right answer so my understanding is failing at a point thankyou [/QUOTE]
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Introductory Physics Homework Help
Electric potential of electron
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