Question

A uniformly charged conducting sphere of 1.4 metre diameter has surface charge density of 60 microcoulomb metre square find charge on square

Answer 1

surface charge density means charge per unit area

area of sphere is =4pi

${r}^{2}$

area = 4pi(0.7)(0.7)

6.15 m square

60*

${10}^{ - 6}$

=

$\frac{q}{6.15}$

q=369 micro coulomb