Two identical conducting spheres are placed with their centers 0.30m apart. One is given a charge of +12*10^(-9)C and the other is given a charge of -18*10^(-9)C.
The spheres are connected with a conducting wire. After equilibrium has occured, find the electric force between the two spheres.
I don't know how to do this. Heres the formula we have:
Force electric=8.99*10^(9)((charge 1*chagre 2)/distance^2)
Please explain what you did to get the variables charge1 and charge2. Thanks
2007-03-20 14:04:41 · 1 answers · asked by Brian 3 in Science & Mathematics ➔ Physics
The final charge for both the spheres is
+12E-9-18E-9=-6E-9
The current flows from high potential to low and equilibrium is
reached when total charge is -6E-9 C
Therefore the charge on each sphere is -3E-9
The force repels and is
8.99E9*(3E-9)^2/.3^2=899E-9 N
2007-03-20 17:11:06 · answer #1 · answered by Rob M 4 · 1⤊ 0⤋