Department of Pre-University Education, Karnataka course PUC Karnataka Science Class 12
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A Charge Q is Uniformly Distributed Over a Large Plastic Plate. the Electric Field at a Point P Close to the Centre of the Plate is 10 V M−1. - Physics

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ConceptElectric Field Introduction of Electric Field

Question

A charge Q is uniformly distributed over a large plastic plate. The electric field at a point P close to the centre of the plate is 10 V m−1. If the plastic plate is replaced by a copper plate of the same geometrical dimensions and carrying the same charge Q, the electric field at the point P will become

  • zero

  • 5 V m−1

  • 10 V m−1

  •  20 V m−1

Solution

10 V m-1
The electric field remains same for the plastic plate and the copper plate, as both are considered to be infinite plane sheets. So, it does not matter whether the plate is conducting or non-conducting.
The electric field due to both the plates,

`"E"  = σ /ε_0`

  Is there an error in this question or solution?

APPEARS IN

 HC Verma Solution for Concepts of Physics - Vol. 2 (2018 to Current)
Chapter 8: Gauss’s Law
MCQ | Q: 1 | Page no. 139
Solution A Charge Q is Uniformly Distributed Over a Large Plastic Plate. the Electric Field at a Point P Close to the Centre of the Plate is 10 V M−1. Concept: Electric Field - Introduction of Electric Field.
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