Answer to Question #153414 in Electric Circuits for Fletcher Madden

Question

A small charged sphere of mass 2.1 × 10^-4kg, suspended from a thread of insulating

material, was placed between two vertical parallel plates 60 mm apart. When a potential

difference of 4200 V was applied to the plates, the sphere moved until the thread made an angle

of 6^o to the vertical.

i) Draw a free body diagram indicating all the forces acting on the sphere.

ii) State and explain the origin of each of the forces acting on the sphere

iii) Calculate the charge on the sphere and determine the number of charged particles on the sphere.

Answer 1

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