simulation. http://www.webassign.net/hrw8/sims/sim29/sim29.html For this questio

Question

simulation. http://www.webassign.net/hrw8/sims/sim29/sim29.html

For this question (see the simulation) set charge 1 to 2 ?C. By adjusting the charge of charge 2 only, what is the largest magnitude electric field you can obtain at the following locations? Assume all numbers stated in this problem are accurate to three significant figures. Try to solve the problems using principles of physics, and then use the simulation to check your answers.

(a) Under these conditions, find the largest magnitude electric field obtainable using the simulation at the point X = 0.27 m, Y = 0 m.

(b) Under these conditions, find the largest magnitude electric field obtainable using the simulation at the point X = 0 m, Y = 0.76 m.

(c) Under these conditions, find the largest magnitude electric field obtainable using the simulation at the point X = 0 m, Y = 0.16 m.

(a) Now set charge 1 to + 1 ?C and charge 2 to + 4 ?C. At what location on the x-axis a finite distance from the charges is the net electric field equal to zero?

(b) Now set charge 1 to + 1 ?C and charge 2 to - 4 ?C. At what location on the x-axis a finite distance from the charges is the net electric field equal to zero?

Explanation / Answer

a) 710.10kN/C

b)55.74 kN/C

c) 187.46 kN/C

d) -1/3 or -0.33 m in the (-ve x axis), this was calculated from formula and not by simulation as it wont be possible to have 1/3 point in any resolution of the screen as 1/3 = 0.3333333....

e) -1.50 m (in the -ve x axis)

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