Mapoob sapling learning ree point charges are placed at distances of d, 2d, and

Question

Mapoob sapling learning ree point charges are placed at distances of d, 2d, and 3d from a point P. The particle that is 2d away rom P has a charge of -14q. From the options given, assign charges to the remaining two point charges such that the potential at point P is zero +5q 3d 13.5q +12q +15.5q +6q 2d 14q There is additional feedback available! View this feedback by clicking on the bottom divider bar. Click on the divider bar again to hide the additional feedback Incorrect Clase Previous Give Up & View Solution # Try Again Next Exit Explanation

Explanation / Answer

The potential in a certain point is the algebraic sum of the individual potentials created by each charge in that point.

In this case: VP=V1+V2+V3

(call q1=left-side charge, from distance d, and q3=righ-side charge, from distance 3d)

kq1/d+kq3/(3d)-(14qk)/(2d)=0 <---> 3q1+q3=21q

There are plenty of combinations!

e.g., q1=+6, q3=+3

q1=+5, q3=+6

etc..................

I am not sure this is what you need. Please, confirm/infirm.

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