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Question
In Millikan’s oil drop experiment the forces acting on the oil drop when oil drop is moving are gravitaional force, electrostatic force and viscous drag.
Which force will stop acting on the oil drop if it's speed is reduced to zero
In Millikan’s oil drop experiment the forces acting on the oil drop when oil drop is moving are gravitaional force, electrostatic force and viscous drag.
Which force will stop acting on the oil drop if it's speed is reduced to zero
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Solution
The correct option is C Viscous Drag
Gravitational and electrostatic force will continue acting on the oil drop even if it's speed is reduced to zero, but viscous drag will only act when there is a relative motion with the fluid.
Thus viscous drag will stop acting.
Gravitational and electrostatic force will continue acting on the oil drop even if it's speed is reduced to zero, but viscous drag will only act when there is a relative motion with the fluid.
Thus viscous drag will stop acting.
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