1. An eletrostatic paint sprayer consists of a charged metal sphere. Charged paint droplets (the sign the same as the metal sphere) are shot towards the metal sphere using a paint gun. The paint droplets repel and move towards a grounded object that needs to be painted. In the figure below, an electrostatic paint sprayer has a 0.15 m diameter metal sphere at a potential V of 22 kV that repels paint droplets onto a grounded wall. Note that the charge on the paint sprayer is not the same as the charge on the paint droplets. sphere (a) What charge is on the sphere? Q sphere a drop = = 1.837 107 -11, с 6.545 107 paint drop repelled to the wall Vsphere m (b) What charge must a 0.09 mg drop of paint have to arrive at the object with a speed of 8 S C Vwall=0 V Electrostatic Paint Sprayer ?

1. An eletrostatic paint sprayer consists of a charged metal sphere. Charged paint droplets (the sign the same as the metal sphere) are shot towards the metal sphere using a paint gun. The paint droplets repel and move towards a grounded object that needs to be painted. In the figure below, an electrostatic paint sprayer has a 0.15 m diameter metal sphere at a potential V of 22 kV that repels paint droplets onto a grounded wall. Note that the charge on the paint sprayer is not the same as the charge on the paint droplets. sphere (a) What charge is on the sphere? Q sphere a drop = = 1.837 107 -11, с 6.545 107 paint drop repelled to the wall Vsphere m (b) What charge must a 0.09 mg drop of paint have to arrive at the object with a speed of 8 S C Vwall=0 V Electrostatic Paint Sprayer ?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 50P: An electrostatic paint sprayer has a 0.200-m-diameter metal sphere at a potential of 25.0 kV that...

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