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Gauss Law Quiz for Students
Two insulated charged spheres of radii 20 cm and 30 cm respectively and having an equal charge q are connected by a copper wire and then they are separated :
(A) both spheres will have the same charge q
(B) both spheres will have the same charge 2q
(C) sphere of radius 20 cm will have a greater charge
(D) sphere of radius 30 cm will have a greater charge
Option d - sphere of radius 30 cm will have a greater charge
Gauss's theorem is true for any point charge situated anywhere:
(A) inside the surface
(B) outside the surface
(C) on the surface
(D) all of these
Option a - inside the surface
Which of the following law gives a relation between the electric flux through any closed hypothetical surface and the charge enclosed by the surface?
(A) Gauss's law
(B) Coulomb's law
(C) Newton's law
(D) All of these
Option a - Gauss's law
Electric charges are distributed in a small volumes. The flux of the electric field through a spherical surface of radius 10 cm surrounding the total charge is 25 Vm. The flux over a concentric sphere of radius 20 cm will be :
(A) 50 Vm
(B) 25 Vm
(C) 20 Vm
(D) 100 Vm
Option b - 25 Vm
A cubical Gaussian surface encloses 30 C of charge at its center. The electric flux through each surface of the cube is :
(A) 30 C
(B) 60 C
(C) 180 C
(D) 5 C
Option d - 5 C
Gauss's law helps in
(A) the determination of electric force
(B) situations where Coulomb's law fails
(C) determining electric potential due to symmetric charge distributions
(D) determining electric field due to symmetric charge distribution
Option d - determining electric field due to symmetric charge distribution
The solid angle subtended at the point 0 (inside sphere) by the whole surface of the sphere is
(A) π
(Β) π/2
(C) 2π
(D) 4 π
Option d - 4 π
Electric intensity at a point near a charged conductor is :
(A) directly proportional to surface charge density
(B) directly proportional to the square of surface charge density
(C) inversely proportional to surface charge density
(D) inversely proportional to the square of surface charge density
Option a - directly proportional to surface charge density
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