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If the electric field lines is flowing along axis of a cylinder, then the flux of this field through the cylindrical surface with the axis parallel to the field is [where r=radius of cylinder]
Options
(a) σ/2πrε₀
(b) σ/ε₀
(c) zero
(d) σ/2ε₀
Correct Answer:
zero
Explanation:
As we have to find the electric flux through the cylindrical surface and we are given that the electric field is flowing along axis of cylinder.
So as we draw area vector on cylindrical surface it will make an angle of 90• by which the cos 90 will become 0 and ans would be 0
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- The transition from the state 3 n = 3 to n = 1 in a hydrogen like atom results
- A moving coil galvanometer of resistance 100 Ω is converted to ammeter by a resistance
- An astronomical telescope arranged for normal adjustment has a magnification of 6.
- Which of the following is true for number of spectral lines in going from Lyman series
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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As we have to find the electric flux through the cylindrical surface and we are given that the electric field is flowing along axix of cylinder
So as we draw area vector on cylindrical surface it will make an angle of 90• by which the cos 90 will become 0 and ans would be 0
Thanks (Prateekpreet Madhukar)