Question

A metal sphere of radius 1 cm is given a charge of 3.14 µC. Find the electric intensity at a distance of 1 m from the centre of sphere.

`[epsilon_0 = 8.85 xx 10^-12  "F"//m]`

Options

• 3.32 x 10⁴ N/C

• 2.83 x 10⁴ N/C

• 2.5 x 10⁴ N/C

• 2.14 x 10⁴ N/C

Answer 1

2.83 x 10⁴ N/C

Explanation:

`"Electric field intensity, E" = "q"/(4piepsilon_0"r"^2)`  (r > R)

`= 2.825 xx 0^4 "N/C"`

`approx 2.83 xx 10^4  "N/C"`