Question 5 part 5 of 6 What is the surface charge density inside the hollow cyli

Question

Question 5

part 5 of 6

What is the surface charge density inside the hollow cylinder?
Answer in units of nC/m2.

Question 6

part 6 of 6

What is the surface charge density outside the hollow cylinder?

Answer in units of nC/m2.

Answer in units of N/C Question 1, chap 124, sect 5. part 1 of 6 10 points Question 5, chap 124, sect 5. part 5 of 6 10 points The figure shows a portion of an infinitely long, concentric cable in cross section. The inner conductor carries a charge of 6.5 nC/m What is the surface charge density inside the hollow cylinder? Answer in units of nC/m2 and the outer conductor is uncharged. The value of the permittivity of free space is 8.85419 × 10-12 C2/N-m2 Question 6, chap 124, sect 5 part 6 of 6 10 points What is the surface charge density outside the hollow cylinder? Answer in units of nC/m 2.3 c 18.8 cm 21.4 cm What is the electric field 1.3 m from the central axis? Answer in units of N/C. Question 2, chap 124, sect 5. part 2 of 610 points What is the electric field at 8 cm from the central axis? Answer in units of N/C Question 3, chap 124, sect 5. part 3 of 6 10 points What is the direction of the electric field at 9.9 em from the central axis? 1. Points radially outward. 2. Undetermined, since the field is zero. 3. The electrie field is not a vector and there- fore has no direction. 4. Points radially inward Question 4, chap 124, sect 5. part 4 of 6 10 points What is the electric field at 20.3 em from the central axis?

Explanation / Answer

q=6.5 nC/m

charge induced on inner wall=-q

on outer wall=q

We know inside the conductor.no charge exist so

surface charge density inside hollow cylinder=0

but on the inside wall of cylinder

surface charge density=(-q)/(2*pi*r)

r=0.094 m

density=-1.1*10^(-8) C/m^2

surface charge density on outer wall=q/(2*pi*R)

R=0.107 m

density=9.67*10^(-9) C/m^2

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