Advertisements
Advertisements
प्रश्न
Two charges of magnitudes +4Q and − Q are located at points (a, 0) and (− 3a, 0) respectively. What is the electric flux due to these charges through a sphere of radius ‘2a’ with its centre at the origin?
Advertisements
उत्तर
Gauss’ theorem states that the electric flux through a closed surface enclosing a charge is equal to `1/epsi_0`times the magnitude of the charge enclosed.

The sphere enclose charge = +4Q.
Thus,`phi = (4Q)/epsi_0`
APPEARS IN
संबंधित प्रश्न
What is the electric flux through a cube of side 1 cm which encloses an electric dipole?
It is said that any charge given to a conductor comes to its surface. Should all the protons come to the surface? Should all the electrons come to the surface? Should all the free electrons come to the surface?
Mark the correct options:
If the flux associated with a coil changes at the rate of 360 webers every 4 minutes, then the induced e.m.f. is ______
The electric flux through the surface ______.
![]() |
![]() |
![]() |
![]() |
| (i) | (ii) | (iii) | (iv) |
An electric charge q is placed at the centre of a cube of side a. The electric flux on one of its faces will be ______.
A charge Qµc is placed at the centre of a cube the flux coming from any surface will be.
The electric charges are distributed in a small volume. The flux of the electric field through a spherical surface of radius 10 cm surrounding the total charge is 20 V-m. The flux over a concentric sphere of radius 20 cm will be ______.
A hollow sphere of radius R has a point charge q at its centre. Electric flux emanating from the sphere is X. How will the electric flux change, if at all, when radius of the sphere is doubled?




