मराठी

How is the Field Directed If (I) the Sheet is Positively Charged, (Ii) Negatively Charged? - Physics

Advertisements
Advertisements

प्रश्न

How is the field directed if (i) the sheet is positively charged, (ii) negatively charged?

Advertisements

उत्तर

(1) `E =sigma/(2in_0)`

Direction of field will be away from the sheet if sheet is positively charged.

`(2) E= -sigma/(2in_0)`

Direction of field will be towards the sheet if sheet is negatively charged.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2011-2012 (March) Delhi Set 1

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

 Use Gauss's law to find the electric field due to a uniformly charged infinite plane sheet. What is the direction of field for positive and negative charge densities?

 


Find the electric field intensity due to a uniformly charged spherical shell at a point (ii) inside the shell. Plot the graph of electric field with distance from the centre of the shell.


Find the ratio of the potential differences that must be applied across the parallel and series combination of two capacitors C1 and C2 with their capacitances in the ratio 1 : 2 so that the energy stored in the two cases becomes the same.


An infinitely large thin plane sheet has a uniform surface charge density +σ. Obtain the expression for the amount of work done in bringing a point charge q from infinity to a point, distant r, in front of the charged plane sheet. 


A point object is placed on the principal axis of a convex spherical surface of radius of curvature R, which separates the two media of refractive indices n1 and n2 (n2 > n1). Draw the ray diagram and deduce the relation between the object distance (u), image distance (v) and the radius of curvature (R) for refraction to take place at the convex spherical surface from rarer to denser medium.


Using Gauss’s law, prove that the electric field at a point due to a uniformly charged infinite plane sheet is independent of the distance from it.


A charge Q is uniformly distributed on a spherical shell. What is the field at the centre of the shell? If a point charge is brought close to the shell, will the field at the centre change? Does your answer depend on whether the shell is conducting or non-conducting?


A thin, metallic spherical shell contains a charge Q on it. A point charge q is placed at the centre of the shell and another charge q1 is placed outside it as shown in the  following figure . All the three charges are positive. The force on the charge at the centre is ____________.


A positive point charge Q is brought near an isolated metal cube.


“A uniformly charged conducting spherical shell for the points outside the shell behaves as if the entire charge of the shell is concentrated at its centre”. Show this with the help of a proper diagram and verify this statement.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×