# 3. In Millikan oil drop experiment, a negatively charged oil droplet of mass 3 x 10-12 g and charge 1.6 x 10-16C is kept suspended within the chamber. (a) Sketch a diagram to show the electric field and different forces working on the oil droplet. (b) Calculate the minimum electric field required in order to keep it suspended inside the chamber. (c) What is the electric field required to move the charge vertically downward at an acceleration of 5 cm/s? ?

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# 3. In Millikan oil drop experiment, a negatively charged oil droplet of mass 3 x 10-12
g and
charge 1.6 x 10-16C is kept suspended within the chamber.
(a)
Sketch a diagram to show the electric field and different forces working on the
oil droplet.
(b)
Calculate the minimum electric field required in order to keep it suspended
inside the chamber.
(c)
What is the electric field required to move the charge vertically downward at
an acceleration of 5 cm/s? ?
Transcribed Image Text:# 3. In Millikan oil drop experiment, a negatively charged oil droplet of mass 3 x 10-12 g and charge 1.6 x 10-16C is kept suspended within the chamber. (a) Sketch a diagram to show the electric field and different forces working on the oil droplet. (b) Calculate the minimum electric field required in order to keep it suspended inside the chamber. (c) What is the electric field required to move the charge vertically downward at an acceleration of 5 cm/s? ?
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