Electric Potential due to Ring of Charge

[naniWithCamelCase]

doesnt sound right, if you change the answer a little you get kq/r which is the voltage for a point charge

[hanohbl]

Hey may I ask why you didn't put limits to the integral? i've been taught to solve this from -infinity to x

[kellysmith]

why did you use alpha instead of lamda for the charge per unit length?

[prashantmalhotra]

I am from And your explanation is awesome

[MrSharon]

I dont understand why r is not a constant?