Question

If maximum circumference of a sphere is 2m then its capitance in water would be (dielectric constant of water 18)

Answer 1

Explanation:

Given,ε0

=8.85×10 −12ε r

=81

Perimeter, L=2πr=2m

r= π1

The capacitance in water,

C=4πε 0εrr

C=4π×8.85×10 −12×81× π1

C=2865pF