Answer:
2 x 10^14 N/Cs
Explanation:
radius, r = 3 cm
Area , A = 3.14 x 3 x 3 = 28.26 cm^2 = 28.26 x 10^-4 m^2
d = 1.1 mm = 1.1 x 10^-3 m
i = 5 A
Let time be t and electric field strength is E.
Charge, q = i x t = 5 t
q = C V
q = C x E x d
[tex]5 t = \frac{\varepsilon _{0}A}{d}\times E\times d[/tex]
[tex]E/t = \frac{5}{\varepsilon _{0}A}[/tex]
[tex]E/t = \frac{5}{8.854\times 10^{-12}\times 28.26\times 10^{-4}}[/tex]
E/t = 2 x 10^14 N/Cs