PLEASE SHOW WORK FROM BEGINNING FOR LIFESAVER RATING Figure 22-25a shows charged

Question

PLEASE SHOW WORK FROM BEGINNING FOR LIFESAVER RATING

Figure 22-25a shows charged particles A and B that are fixed in place on an x axis. Particle A has an amount of charge of |qA| = 8-00e. Particle C, with a charge of qc = + 8.00e, is initially on the x axis near particle B. Then particle C is gradually moved in the positive direction of the x axis. As a result, the magnitude of the net electrostatic force on particle B due to particles A and C changes, Figure 22-25b gives the x-component of that net forces as a function of the position x of particle C. The plot has an asymptote of = 1.5 times 10-25 N as .x rightarrow infinity. As a multiple of e, what is the charge qB of particle B?

Explanation / Answer

the particle A has to b positive otherwise direction of force wont change for lowering the x for particle C then we have force balance (kB8e/(0.4)^2)=(kB8e)/r^2=1.5*10^-25 = force in the absence of particle C (i.e particle C at infinity) this equation gives B=13.02083333e

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