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 0.25 m diameter metal sphere at a potential V of 25 kV that repels paint droplets onto a grounded wall. Note that the charge on the paint sphere sprayer is not the same as the charge on the paint droplets. (a) What charge is on the sphere? C Q sphere a drop paint drop repelled to the wall Vsphere C Vwall=0 m (b) What charge must a 0.13 mg drop of paint have to arrive at the object with a speed of 10 S Electrostatic Paint Sprayer ?

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Chapter1: Units, Trigonometry. And Vectors
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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 0.25 m diameter metal sphere at a potential
V of 25 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?
C
Q sphere
a drop
=
=
paint drop
repelled to the wall
Vsphere
C
m
(b) What charge must a 0.13 mg drop of paint have to arrive at the object with a speed of 10
S
Vwall=0
Electrostatic Paint Sprayer
-?
Transcribed Image Text: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 0.25 m diameter metal sphere at a potential V of 25 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? C Q sphere a drop = = paint drop repelled to the wall Vsphere C m (b) What charge must a 0.13 mg drop of paint have to arrive at the object with a speed of 10 S Vwall=0 Electrostatic Paint Sprayer -?
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