Question

The electric field between the inside and outside layers is:

• A. ${10}^{6}V{m}^{-1}$
• B. $5\times {10}^{6}V{m}^{-1}$
• C. $0.2\times {10}^{7}V{m}^{-1}$
• D. ${10}^{7}V{m}^{-1}$

Answer 1

Answer: (D)

${10}^{7}V{m}^{-1}$

Electric field between inside and outside layers $E=\frac{\sigma }{{\epsilon }_{0}k}$

$E=\frac{5\times {10}^{-4}}{8.85\times {10}^{-12}\times 5.4}$

$E={10}^{7}V{m}^{-1}$