Two identical conducting small spheres are placed with their centers 0.300 m apa
ID: 1278371 • Letter: T
Question
Two identical conducting small spheres are placed with their centers 0.300 m apart. One is given a charge of -12.0 nC, and the other a charge of 14.0 nC.
(a) Find the electric force exerted by one sphere on the other.
Magnitude ???? NDirection
repulsion ?attraction ?
(b) The spheres are connected by a conducting wire. Find the electric force between the two after they have come to equilibrium.
Magnitude
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. ????? NDirection
repulsion ? attraction ?
Explanation / Answer
F = kq1q2/r^2
F = 9e9 * -12nC *14nC/(0.3^2)
F = 1.68 *10^-5 N
attractive force as they are opposite charges
---------------------------------
when coonected , net charge = -12 +14/2 = 1nC
so F = 9e9 *1nC *1nC/(0.3^2)
F = 1*10^-7 N
repulsive force
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