Charge of uniform density (20 nC/m2) is distributed over a ...

[leilurhhh]

Charge of uniform density (20 nC/m2) is distributed over a cylindrical surface (radius = 1.0 cm), and a second coaxial surface (radius = 3.0 cm) carries a uniform charge density of -12 nC/m2 . Determine the magnitude of the electric field at a point 4.0 cm from the symmetry axis of the two surfaces.
 a. 0.45 kN/C
  b. 1.0 kN/C
  c. 0.73 kN/C
  d. 0.56 kN/C
  e. 2.3 kN/C

Question 2

Charge of uniform density (20 nC/m2) is distributed over a cylindrical surface (radius = 1.0 cm), and a second coaxial surface (radius = 3.0 cm) carries a uniform charge density of -12 nC/m2 . Determine the magnitude of the electric field at a point 2.0 cm from the symmetry axis of the two surfaces.
 a. 2.3 kN/C
  b. 1.1 kN/C
  c. 1.7 kN/C
  d. 3.4 kN/C
  e. 4.5 kN/C

[anyusername12131]

Answer to Question 1

A

Answer to Question 2

B

[leilurhhh]

Thank you!

[anyusername12131]

Always glad to help...