Ask a Question

A circular disc of radius 5m with a surface charge density ρs = 10sinφ is enclosed by surface. What is the net flux crossing the surface?

in Education by
A circular disc of radius 5m with a surface charge density ρs = 10sinφ is enclosed by surface. What is the net flux crossing the surface? (a) 3 (b) 2 (c) 1 (d) 0 This question was posed to me in an international level competition. My doubt is from Gauss Law in chapter Electrostatic Fields of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

1 Answer

0 votes
by
 
Best answer
The correct choice is (d) 0 The explanation: Q = ∫ ρsds = ∫∫ 10sinφ rdrdφ, on integrating with r = 0->5 and φ = 0->2π, we get Q = ψ = 0.

Related questions

0 votes
Q: Find the charged enclosed by a sphere of charge density ρ and radius a.
    Find the charged enclosed by a sphere of charge density ρ and radius a. (a) ρ (4πa^2 ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: Three charged cylindrical sheets are present in three spaces with σ = 5 at R = 2m, σ = -2 at R = 4m and σ =-3 at R = 5m. Find the flux density at R = 4.5m.
    Three charged cylindrical sheets are present in three spaces with σ = 5 at R = 2m, σ ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: Find the flux enclosed by a material of flux density 12 units in an area of 80cm.
    Find the flux enclosed by a material of flux density 12 units in an area of 80cm. (a) ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: The electric flux density of a surface with permittivity of 2 is given by 12 units. What the flux density of the surface in air?
    The electric flux density of a surface with permittivity of 2 is given by 12 units. What ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: Find the flux density at the boundary when the charge density is given by 24 units.
    Find the flux density at the boundary when the charge density is given by 24 units. (a) ... proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance
0 votes
Q: Find the charge density from the function of flux density given by 12x – 7z.
    Find the charge density from the function of flux density given by 12x - 7z. (a) 19 ( ... theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel...
asked Nov 11, 2021 in Education by JackTerrance

© Copyright 2018-2023 www.Blogmepost.com. All rights reserved. Developed by Blogmepost.

...