double the length, double the surface area, so charge density is halved.
add another 10nC to bring the sigma back up to original.
If a segment of wire has a net charge (uniformly distributed), and then its length is increased by 50%,by what factor has its charge density changed?
If the original charge was 10.0 nC, how much charge must then be added to restore the wire’s original charge
density?
1 answer