An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 x 104 NC-1 in Millikans oil drop experiment.

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An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 x 10⁴NC^-1in Millikans oil drop experiment. The density of the oil iS 1.26 gcm^-3 Estimate the radius of the drop. [g = 9.8 ms^-1; e = 1.69 x 10^-19C].

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For oil drop to be stationary:

Force due to gravity=force of electric force

force of electric field

structure of atoms

The radius of oil drop is 0.98um

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An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 x 104 NC-1 in Millikans oil drop experiment.

An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 x 104 NC-1 in Millikans oil drop experiment. The density of the oil iS 1.26 gcm-3 Estimate the radius of the drop. [g = 9.8 ms-1; e = 1.69 x 10-19C].

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An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 x 10⁴NC^-1in Millikans oil drop experiment. The density of the oil iS 1.26 gcm^-3 Estimate the radius of the drop. [g = 9.8 ms^-1; e = 1.69 x 10^-19C].