Thursday
December 18, 2014

Homework Help: Physics

Posted by Sandra on Saturday, February 6, 2010 at 1:24pm.

Hi, O tried this question, but I'm getting an answer of 0.99 which rounds to 1, but it was not given as one of the answer choices...can u tell me where I'm going wrong?

What I did was used the following simplified formula:

Volume*density*g =q*E ; where I solved for q.

Then I divided q/e(elementary charge) to find the ratio..


In Robert Millikan's experiment a constant electric field along the vertical axis is obtained with two charged plates, one located above and on below the experimental set-up. The electric field is directed downwards. An oil drop of radius 1.48 μm and density 0.81 g/cm3 is levitated in the chamber when an electric field of 1.7 x 105N/C is applied. Find the charge on the drop as a multiple of the elementary charge e.


the choices were:

2
3
4
5
6

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - Over time, a student analyzes her ability to guess correctly after ...
Math - Given a multiple choice test with 4 choices for each question and 17 ...
math - student is taking up midterm exam for 3 minutes left to answer 10 ...
Math - 1.2 (1+ 23.0 x 10-6/°C*50) Could someone solve this problem for me and ...
Math - Can someone please help me to answer the following question? The question...
Question,drbob222,math - Drbob222, even if you just tell me that there is an ...
Physics - Three spheres, each with a negative chrge of 4.0x10^6C, are fixed at ...
math - Hi I need help with 5 questions..some of it is confusing to me. I just ...
Math (putting the question back up, again) - - 5/8c = 20 Answer choices: 34 . -...
Statistics - On a very short quiz, there is one multiple choice question with 5 ...

Search
Members