Question

Three charged marbles are glued to a nonconducting surface and are placed in the diagram as shown. The charges of each marble are q₁ = 6.75 µC, q₂ = 1.18 µC, and q₃ = −2.49 µC. Marble q₁ is a distance r₁ = 3.00 cm to the left of the marble q₂, while marble q₃ is a distance r₃ = 2.00 cm to the right of the marble q₂, as shown. Calculate the magnitude of the electric field a distance r' = 1.00 cm to the left of the center marble.
__ N/C

Another marble is placed 1 cm to the left of the middle marble. If this new marble has a charge of

−3.51 µC, calculate magnitude and direction of the force on it.

magnitude	___ N
direction	---Select--- upwards downwards left right

Answer 1