An oil drop has a charge 9 6 x 10 C and has a mass 1 6 x 10

Last updated: 6/11/2023

An oil drop has a charge 9 6 x 10 C and has a mass 1 6 x 10 5 g When allowed to fall between horizontal plate of uncharged parallel plate capacitor due to air resistance force it attains a constant velocity Then if a uniform electric field is to be applied vertically to make the oil drop ascend up with the same constant speed which of the following are correct g 10 m s Assume that magnitude of air resistance force is same in both cases A The electric field must be directed upward B The electric field must be directed downward C Intensity of the electric field must be 100 3 N C D Intensity of the electric field must be 100000 6 N C