Home
Class 12
PHYSICS
A tiny spherical oil drop carrying a net...

A tiny spherical oil drop carrying a net charge q is balanced in still air with a vertical uniform electric field of strength `(81pi)/(7)xx10^5Vm^-1`. When the field is switched off, the drop is observed to fall with terminal velocity `2xx10^-3ms^-1`. Given `g=9.8ms^-2`, viscoisty of the air `=1.8xx10^-5Nsm^-2` and the denisty of oil `=900kg m^-3`, the magnitude of q is

Promotional Banner

Similar Questions

Explore conceptually related problems

The terminal velocity of a rain drop is 30cm//s . If the viscosity of air is 1.8xx10^(-5)Nsm^(-2) .The radius of rain drop is

The terminal velocity of a rain drop is 30cm//s . If the viscosity of air is 1.8xx10^(-5)Nsm^(-2) .The radius of rain drop is

An oil drop falls through air with a terminal velocity of (5xx10^(-4))/(sec) viscosity of air is 1.8xx10^(-5)(N-s)/(m^(2)) and density of oil is 900 kg m^(3) neglect density of air as compared to that of oil.

An oil drop falls through air with a terminal velocity of (5xx10^(-4))/(sec) viscosity of air is 1.8xx10^(-5)(N-s)/(m^(2)) and density of oil is 900 kg m^(3) neglect density of air as compared to that of oil.

An oil drop falls through air with a terminal velocity of (5xx10^(-4))/(sec) viscosity of air is 18xx10^(-5)(N-s)/(m^(2)) and density of oil is 900 kg m^(3) neglect density of air as compared to that of oil.

If an oil drop of weight 3.2xx10^(-13) N is balanced in an electric field of 5xx10^(5) Vm^(-1) , find the charge on the oil drop.

A charged oil drop weighing 1.6 xx 10^(-15) N is found to remain suspended in a uniform electric field of intensity 2 xx 10^3NC^(-1) . Find the charge on the drop.

A rain drop of radius 0.5 mm has a terminal velocity in air 2 ms^(-1) . The viscosity of air is 18 xx 10^(-5)" dyne "cm^(-2)s . Find the viscous force on the rain drop.