In Millikan's experiment in the figure below, an oil droplet of mass 3.71 fg has an excess charge of five electrons. An electric field has been applied, and the droplet is levitating. What is the magnitude of the electric field? (Units: N/C)

In Millikan's experiment in the figure below, an oil droplet of mass 3.71 fg has an excess charge of five electrons. An electric field has been applied, and the droplet is levitating. What is the magnitude of the electric field? (Units: N/C)

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter30: Atomic Physics

Section: Chapter Questions

Problem 1PE: Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their...

See similar textbooks

Related questions

Q: Calculate the deBroglie wavelength of electrons accelerated through 3868 V. Round off the answer to…

A: Given data: - The potential difference is V = 3868 V.

Q: electron is to be accelerated in a uniform electric field having a strength of 2x10^6. what energy…

A: Write the expression for change in energy in terms of charge and potential difference and also write…

Q: 2) What is the total mass of the 6.2 x 10^18 electrons? Me= 9.11 × 10^-31 kg A. 5.6 × 10^−12 kg B.…

A: Given data: Number of electrons is, n=6.2×1018. Mass of 1 electron is, me=9.11×10-31 kg.

Q: Use the following information to answer the next three questions In a Millikan type experiment a…

A: Given, Potential difference,V=2.8×102V Separation between plates,d=2 cm=0.02 m Number of excess…

Q: Consider a proton with a 6.6 fm wavelength. What is the velocity of the proton in meters per second?…

A: Wavelength , λ = 6.6 fm = 6.6 x 10-15 m To find = Velocity of proton

Q: Which of the following would you use to dislodge an interior electron from an atom? An interior…

A: Synchrotron accelerate electron and proton synchrotron accelerate proton.

Q: Using the value, 1.7 x 10^11 C/kg, for q/me and your average charge on an electron, 1.67 x 10^-19 C,…

A: Given data: q/me = 1.7 × 1011 C/kg Average charge on an electron(q) = 1.67 × 10-19 C Required:…

Q: If one of the droplets in the famous oil drop experiment has a charge of - 9.6 * 10 ^ - 19 * C how…

A: Given data: Charge (Q) = -9.6 × 10-19 C Required: Number of electrons

Q: How does the number n of ejected electrons per second resulting from each light beam compare?…

A: Energy of red light is E=1.8 ev=1.8×1.6×10-19 JE=2.88×10-19 J Energy of Green light is E=2.3…

Q: A Partice of charge q= moves in velocity V = Ot +3 - 13k in magnetic Field B=j-k and Electric Field…

Q: In a Millikan oil-drop experiment, a uniform electric field of 2.03 x 105 N/C is maintained in the…

A: Introduction: In 1923 Millikan receive Noble prize in Physics for his famous oil drop experiment.…

Q: The work function of cesium is 1.6 x 10-19 J. Calculate the maximum speed of the electrons emitted…

A: work function of cesium (W) = 1.6×10-19 J wavelength of incident light = 0.589 μm

Q: Which experiences the largest force in a given external electric field? a) a β+ particle b) a β-…

A: Required : Which experiences the largest force in a given external electric field.

Q: MCQ 5: An Electric field deflects the beams of A. protons only B. electrons only C. neutrons D.…

Q: A simple mass spectrometer may include an electron ionization (EI) source and magnetic sector mass…

A: Formula of kinetic energy is as follows; K=qV…

Q: A 370 µF capacitor in a photoflash is charged to a voltage source of 330 V. How much charge is…

Q: The force between two small spheres that is 25 cm apart is 6.5 × 10-21 N. How many excess electrons…

A: It is given that the force between two small spheres that are 25 cm apart is 6.5*10-21 N. We have…

Q: The mass of an electron is 9.109 381 88 x 10-31kg. Find (a) y and (b) 3 for an electron with kinetic…

A: Given that, Mass of electron, m = 9.10938188 * 10-31 kg Kinetic energy, E = 32.1024 MeV We know…

Q: An electron has rest energy 512 x 103 eV. In electron-volts (eV), calculate the kinetic energy of an…

Q: Using magnetic confinement, one particle is restrained to levitate over another. What is this…

A: In this question we have to find the separation when the particles are two electrons. Please give…

Q: #11 Electron Volt Measure In #10, recalling that the proton mass is 1.67 × 10-27 kg, what is the…

Q: In a cathode-ray tube (CRT), an electron travels in a vacuum and enters a region between two…

Q: How much energy, in eV, is produced when the mass of one proton (m, = 1.673 x 10-2 kg) is converted…

A: Given Mass of proton = 1.673 × 10-27 kg 1 eV = 1.60 × 10-19 J We have to calculate energy by…

Q: Compare between the B, a and y in this table, using these words: [2mp+2mn, 0, me], [2e*, 0, e or…

A: Rutherford used Alpha particles in his scattering. Alpha particles made of two protons and two…

Q: You pick up a block of wood with 3 x 10^27 protons, 3 x 10^27 neutrons and 3.1 x 10^27 electrons. a)…

Q: For the vernier caliper with zero reading as zero, determine the reading shown. Choose the best…

A: Vernier caliper is the laboratory instrument used to measure the reading of some linear dimensions.…

Q: On which level within this parallel status would an electron have the most potential energy? (the…

A: An electron have the most potential Energy at level D .

Q: To initiate a nuclear reaction, an experimental nuclear physicist wants to shoot a proton into a…

Q: 2. An electron is to be accelerated in a uniform electric field of 4 µC V/m. (a) What energy is…

A: Given data: Magnitude of electric field is, E=4 μC·V/m=4×10-6 C·V/m. Distance covered by electron in…

Q: experiment, an oil drop of mass 4.90×10−15 kg is balanced and held stationary by electric field…

Q: Two mercury drops, each of radius r, merge to form a bigger drop. Calculate the surface energy…

A: Consider that R is the radius of the bigger drop and T is the surface tension of the bigger drop.

Q: A new type of force was discovered by physicists with the following expression: a Fnew = + Be* + 3x4…

Q: Attenuation coefficient of bone is 600 m1 for x-rays of energy 20 keV and intensity of beam of…

Q: Students focus ultraviolet light on a metal plate. They measure the number of electrons ejected by…

A: Required : How to increase the kinetic energy of each ejected electron.

Q: Droplet mass: 3.5x10-15 kg Droplet charge: 861x10-19 C Gap (d): 0.1 m Length of plates (L): 0.3 m…

A: Solution

Q: What is the essential difference between gamma rays and green light? A. Gamma rays have an electric…

A: Answer :- (D) Gamma rays are a form of radiation, green light is not. Because Gamma rays have the…

Q: Find the nuclear radii of the following nuclides:

A: As per our norms you have posted the question that contains multiple subpart so I am going to solve…

Q: 22. This makes use of perpendicular electric and magnetic fields to select particles of a specific…

A: When both electric & magnetic field exist in a region , then for a moving charged particle both…

Q: Assume that an electron is accelerated from a to b in a CRT(cathode ray tube) as in the figure…

A: the potential energy of the electron at plate 'a' gets converted into kinetic energyat plate 'b' qV…

Q: Scientists at the U.S. National Institute of Standards and Technology measured a force of 174 yN…

Q: A carbon-14 ion with a charge of +6.408x10^-19 C and a mass of 2.34x10^-26 kg is sent through a mass…

A: Given : Charge of C-14 ion, q = +6.408x10-19 C Mass of C-14 ion, m = 2.34x10-26 kg Distance at…

Q: An alpha particle is whizzing by at a velocity determined by its KE of 5 Mev. a ) What is the…

A: (a) The kinetic energy of the alpha particle is, KE=12mv2v2=2KEmv=2KEm Substitute the values, to…

Q: A proton of energy 25 MeV is moving in Pb. How much energy does it lose in a collision with an alpha…

A: Given : Energy of proton, Ei = 25 MeV = 25 x 106 eV It collide with alpha particle.

Concept explainers

Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?

Question

In Millikan's experiment in the figure below, an oil droplet of mass
3.71 fg has an excess charge of five electrons. An electric field has
been applied, and the droplet is levitating. What is the magnitude
of the electric field? (Units: N/C)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton's mass to the electron's? (The charge-to-mass ratios for electrons and protons are −1.7588×1011 C/kg and 9.5788e7 C/kg , respectively. Note that since the charge-to-mass ratios are given to five-digit accuracy, your answer may differ from the accepted ratio. Round your answer to at least five significant figures.) Mp/Me =
Using the value, 1.7 x 10^11 C/kg, for q/me and your average charge on an electron, 1.67 x 10^-19 C, what is your calculated value for the mass of the electron in kg?
Solar wind is a flow of heavily charged ions emanating from the Sun’s corona. Spectroscopic analysis suggests it contains a density of approximately 5.0 electrons per cubic centimeter (cm3). Given that the elementary charge ? ≈ 1.6 × 10−19 ? and using the combined average of your measured values of Q 0.0375nC, determine the charge density of a cubic meter (m3) of solar wind sample as a function of Q
A charged droplet is released between 2 vertical plates with an electric field across them. Calculate the deflection (z) of the droplet by the time it leaves the electric field region. You should first calculate the time spent by the droplet accelerating under the action of gravity Droplet mass: 3.5x10-15 kg Droplet charge: 861x10-19 C Gap (d): 0.1 m Length of plates (L): 0.3 m Voltage (VA-VB): 5 V Acceleration due to gravity 9.8 ms-2
In that same diagram, suppose that the field has a strength of 0.00298 T, and that the particle making track A moves at 847 m/s with a charge of absolute magnitude 1.6 x 10-19 C and a mass of 9.11 x 10-31 kg. If the field were large enough for particle A to make a complete circle, what would you calculate for its diameter? Express your answer in millimeters (mm) and in normal notation.
What is the magnitude of the repulsive force between a 3.4 mC charge and a 6.3 mC charge if they are separated by a distance of 93 centimeters? Report your answer kN rounded up to the tenths place
The beam of electrons goes undeflected when passing through crossed electric and magnetic fields of magnitude 6x104 V/m and 1x10-3 T, respectively. What is the radius of the electron orbit, in mm, if the electric field is turned off? Give your answer to 2 decimals.
Scientists at the U.S. National Institute of Standards and Technology measured a force of 174 yN exerted by a weak electric field on a vibrating “crystal” of 60 9Be1 ions cooled to 0.5 mK in an electromagnetic trap. (M. J. Biercuk et al., arXiv.org:1004.0780v3 [quant-ph] 24 Apr 2010.) (a) Express the force in newtons in scientific notation. (b) Express the temperature in kelvins in scientific notation. (c) The gravitational force on a mass m at Earth’s surface is F 5 GMm/r2, where G is the gravitational constant (insideback cover), M is the mass of the Earth (5.98 3 1024 kg), and r is the radius of the Earth (6.38 3 106 m). Find the mass of 60 Be1 ions in kg. Find the gravitational force on 60 Be1 ions in N and yN.
Given the following massspectrometer schematic, find theB-field such that the radius of theparticle’s trajectory is 0.194 m. Assume the particle is an electronwith mass 2.36 x 10-26 kg, and beginsits trajectory in an E-field of 2.1 x103 V/m.
Assume that an electron is accelerated from a to b in a CRT(cathode ray tube) as in the figure below.Vba= 6*1000V. What is the speed of electron arrived at plate b?
Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton's mass to the electron's? (Note that since the charge-to-mass ratios are given to only three-digit accuracy, your answer may differ from the accepted ratio in the fourth digit.)
In a Milkman oil drop experiment, an oil drop of mass 4.90×10−15 kg is balanced and held stationary by the electric field between two parallel plates. If the potential difference between two plates is 750 V and spacing between them is 5.0 mm, calculate the charge on the droplet. Assuming g= 9.8 m/s2.