Millikan oil drop experiment potential difference

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SUMMARY

The Millikan oil drop experiment involves calculating the potential difference between two plates with a uniform electric field of 1.92 x 10^5 N/C and a separation of 1.5 cm. To determine the potential difference (V), the relationship between electric field (E) and potential difference is utilized, expressed as V = E * d, where d is the distance between the plates. The mass of the oil drop is essential for calculating the charge (q) using the equation mg = qE. Without the mass, the charge cannot be determined, making it impossible to find the potential difference directly.

PREREQUISITES
  • Understanding of electric fields and potential difference
  • Familiarity with the Millikan oil drop experiment methodology
  • Knowledge of the relationship between force, mass, and charge (mg = qE)
  • Basic principles of electrostatics and charge calculation
NEXT STEPS
  • Research the calculation of potential difference in uniform electric fields
  • Learn about the significance of mass in electrostatic experiments
  • Explore the principles of the Millikan oil drop experiment in detail
  • Study the relationship between charge, electric field, and force
USEFUL FOR

Students in physics, educators teaching electrostatics, and researchers interested in experimental methods for measuring charge and potential difference.

AMMax
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Homework Statement


in a Millikan oil drop experiment, a uniform electric filed of 1.92 x 10^5 N/C is maintained in a region between two plates separated by 1.5 cm. Find the potential difference between the plates.


Homework Equations


mg = q x E


The Attempt at a Solution


in order to find the q and hence find the voltage/potential you need to have mass. there is no mass given. I assume once you have mass you get q and from there you can find voltage using k(q/r)
 
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To find V, the pd between the plates:
In a uniform electric field between parallel plates, the field can be calculated from the potential gradient. You have the field strength given and you know the plate separation.
Does this help?
 

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