Question

Electrical capacity of spherical conductor of radius 9 km is

Answer 1

Answer:

ANSWER

is 2Uf

hope it helps

Answer 2

Explanation:

Electrical Capacitance of Sphere =

$= 4\pi \: E⁰{r}^{2}$

• E⁰ = permittivity of free space (8.85×10-¹²m kg-¹ s⁴ A²)
• r = radius of sphere (9km = 9×10³ m)

$= 4 \times 3.14 \times 8.85 \times {10}^{ - 12} \times ({9 \times {10}^{3} )}^{2}$

$= 4 \times 3.14 \times 8.85 \times {10}^{ - 12} \times 81 \times {10}^{6}$

$= 9003.636 \times {10}^{ - 6}$

$= 9.003636 \times {10}^{ - 3}$

= 9.003636×10-³ Farad

= 9.003636 mF