मराठी

Define Electric Flux.

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प्रश्न

Define Electric Flux.

Define the term ‘electric flux’.

Define ‘electric flux’.

व्याख्या
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उत्तर

The number of electric field lines crossing a given area, kept normal to the electric field lines, is called electric flux.
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पाठ 1: Electrostatics - Evaluation [पृष्ठ ७३]

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संबंधित प्रश्‍न

Consider two hollow concentric spheres, S1 and S2, enclosing charges 2Q and 4Q respectively as shown in the figure. (i) Find out the ratio of the electric flux through them. (ii) How will the electric flux through the sphere S1 change if a medium of dielectric constant 'εr' is introduced in the space inside S1 in place of air ? Deduce the necessary expression


A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of 80.0 μC/m2.

  1. Find the charge on the sphere.
  2. What is the total electric flux leaving the surface of the sphere?

Two charges of magnitudes −2Q and +Q are located at points (a, 0) and (4a, 0) respectively. What is the electric flux due to these charges through a sphere of radius ‘3a’ with its centre at the origin?


Mark the correct options:


A charge 'Q' µC is placed at the centre of a cube. The flux through one face and two opposite faces of the cube is respectively ______.


A cylinder of radius R and length L is placed in a uniform electric field E parallel to the cylinder axis. The total flux for the surface of the cylinder is given by ______.


The electric field in a region is given by `bar"E" = 4hat"i" + 10hat"j"` N/C. The flux of this field through a square of 10 cm on a side whose plane is parallel to the XZ plane.


The S.I. unit of electric flux is ______


A hollow sphere of radius R has a point charge Q at its centre. Electric flux emanating from it is `phi`. If both the charge and the radius of the sphere are doubled, electric flux emanating from the sphere will ______.


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 charge q is replaced by an electric dipole?


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