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प्रश्न
What is the net flux of the uniform electric field of previous question through a cube of side 20 cm oriented so that its faces are parallel to the coordinate planes?
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उत्तर
All the faces of a cube are parallel to the coordinate axes. Therefore, the number of field lines entering the cube is equal to the number of field lines piercing out of the cube. As a result, net flux through the cube is zero.
संबंधित प्रश्न
Define electric flux.
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Consider a uniform electric field E = 3 × 103 `hat i` N/C.
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- What is the flux through the same square if the normal to its plane makes a 60° angle with the x-axis?
Given a uniform electric field \[\vec{E} = 2 \times {10}^3 \ \hat{i}\] N/C, find the flux of this field through a square of side 20 cm, whose plane is parallel to the y−z plane. What would be the flux through the same square, if the plane makes an angle of 30° with the x−axis ?
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If the flux of the electric field through a closed surface is zero,
(a) the electric field must be zero everywhere on the surface
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(c) the charge inside the surface must be zero
(d) the charge in the vicinity of the surface must be zero
The electric field in a region is given by `vec"E"` = 5 `hatk`N/C. Calculate the electric flux Through a square of side 10.0 cm in the following cases
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- The normal to the square makes an angle of 45° with the Z axis.
The SI unit of electric flux is ______.
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- B: mid-point of an edge of the cube.
- C: centre of a face of the cube.
- D: mid-point of B and C.
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