Physics-
General
Easy

Question

A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.

What would be the final distribution of charges if the spheres are joined by a conducting wire.

  1. zero on outer and Q on inner sphere    
  2. +Q on inner and -Q on outer sphere    
  3. zero on inner and Q on outer sphere    
  4. -Q on inner and +2Q on outer sphere    

The correct answer is: zero on inner and Q on outer sphere

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A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.

Find the electric field between the spheres at a distance r from the centre of the inner sphere. [R<r<3R].

A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.

Find the electric field between the spheres at a distance r from the centre of the inner sphere. [R<r<3R].

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Electrostatic force on a charged particle is given by stack F with rightwards arrow on top equals q stack E with rightwards arrow on top. If q is positive stack F with rightwards arrow on top upwards arrow upwards arrow stack E with rightwards arrow on top and if q negative stack F with rightwards arrow on top upwards arrow downwards arrow stack E with rightwards arrow on top
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