Here is the problem which i am struggling on please help, Ask an Expert

Academics

Here is the problem which I am struggling on, please help me!

Problem: In a particular Millikan oil-drop apparatus, the plates are 2.25cm apart. The oil used has a density of 0.835g/cm³, and the atomizer that sprays the oil drops produces drops of diameter 1.00x10^-3mm.

Part I: What strength of electric field is needed to hold such a drop stationary against gravity if the drop contains five excess electrons?

Part II: What should be the potential difference across the plates to produce this electric field?

Part III: If another drop of the same oil requires a plate potential of 66.9V to hold it stationary, how many excess electrons did it contain?

I need tutor help to solve the above problem.

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91229477

Have any Question?Write your Review or question?

Related Questions in Physics

Question r 1097107 m-1a what is the wavelength of the line

Question: R= 1.097*10^7 m^-1 A) What is the wavelength of the line corresponding to n=4 in the Balmer series? B) What is the wavelength of the line corresponding to n=5 in the Balmer series? C) What is the smallest wavel ...

Question a series rlc circuit consists of a 50ohm resistor

Question: A series RLC circuit consists of a 50ohm resistor, a 3.3 mH inductor, and a 480 nF capacitor. It is connected to a 5.0 kHz oscillator with a peak voltage of 5.0 V. A) What is the instantaneous current i when e= ...

Question part a what focal length does the lens need assume

Question: Part A: What focal length does the lens need? Assume that it is a thin lens. Part B: How far should you place the lens from the slide? The response must be typed, single spaced, must be in times new roman font ...

A projectile is fired at ground level with an initial

A projectile is fired at ground level with an initial speed of 36 m/s, at an angle of 34 degrees above the horizontal. It hits a target above the ground 2.4 seconds later. What is the horizontal distance in meters, from ...

Question part a what is the speed of light in ethyl alcohol

Question: Part A: What is the speed of light in ethyl alcohol (n = 1.36)? Part B: What is the speed of light in lucite (n = 1.50)? Part C: What is the speed of light in crown glass (n = 1.52)? The response must be typed, ...

Question a ring with radius r and a uniformly distributed

Question: A ring with radius R and a uniformly distributed total charge Q lies in the xy plane, centered at the origin. Part A: What is the potential V(z) due to the ring on the z axis as a function of z? Express your an ...

Question a straight wire of length l has a positive charge

Question: A straight wire of length L has a positive charge Q distributed along its length. Find the magnitude of the electric field due to the wire at a point located a distance d from one end of the wire along the line ...

A catapult launches a test rocket vertically upward from a

A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 80.0 m/s at ground level. The engines then fire, and the rocket accelerates upward at 5.00 m/s^2 until it reaches an ...

Question a solenoid 220 cm longand with a cross-sectional

Question: A solenoid 22.0 cm longand with a cross-sectional area of 0.500cm2 contains 415turns of wire and carries a current of 85.0 A. (a) Calculate the magnetic field in the solenoid. (b) Calculate the energy density i ...

Question suppose that two stars in a binary star system are

Question: Suppose that two stars in a binary star system are separated by a distance of 90 million kilometers and are located at a distance of 180 light-years from Earth. Part A What is the angular separation of the two ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert