Question

A metal wire is bent in a circke of radius 10cm. it is given a cherge of200 microcoulomb which spreads on it uniformly. calculate the potential at its su
centre?

Answer 1

Answer:

Here, q=200μC=2×10−4C

r=10cm=0.10m

Electric potential at the center, V=14π∈0qr

=9×109×2×10−40.1=18×106V