How Do You Calculate Work Required to Move a Charge Near a Charged Cylinder?

AI Thread Summary
To calculate the work required to move a charge near a charged cylinder, one must first determine the electric field generated by the cylinder using its uniform charge density. The electric field can be found using Gauss's Law, which applies to cylindrical symmetry. Once the electric field is established, the work done in moving the charge can be calculated by integrating the force exerted on the charge over the distance moved. The user is seeking clarification on the final numerical answer, which should be in the form of 2.5X * 10^something. Assistance is needed to resolve the calculation accurately.
deedeedee
Messages
3
Reaction score
0
I have a question that I am hoping someone can help me with, and I would like to say thank you to everyone who looks at this and tries to help.

We have a cylinder with uniform charge density of 2*10^-6 C/m^3, with a radius of 0.05m. How do I figure out how much work is required to move a charge of 4*10^-12C from 0.1m to 0.07m (distances from the center of the cylinder).

The answer should be 2.5X * 10^ something (don't know exactly), but I can't figure out how to do this. Someone please help.

Thanks
 
Physics news on Phys.org
can someone please help? i am very screwed if i don't figure this out. thanks.
 
nobody knows?
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Thread 'Trying to understand the logic behind adding vectors with an angle between them'
My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
Back
Top