Millikan’s Oil Drop Experiment and Stokes Law Flashcards by Tom Unknown

Q

what is the general method of this experiment?

A

a fine mist of atomised oil drops is sprayed into the chamber
as the drops pass out of the spray nozzle they are ionised by X rays

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

why is oil used instead of water?

A

oil is used because it does not evaporate quickly
means mass of the drops will remain constant

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

why are X rays used to ionise the drops?

A

changes their charge from neutral
if they lose electrons they become positively charged
if they gain electrons they become negatively charged

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

A

How well did you know this?

1

Not at all

2

3

4

5

Perfectly