List-I (Polymer) | List-II (Used in making) |
---|---|
Polymer 1 | Application 1 |
Polymer 2 | Application 2 |
Polymer 3 | Application 3 |
Polymer 4 | Application 4 |
You are given a dipole of charge \( +q \) and \( -q \) separated by a distance \( 2l \). A sphere 'A' of radius \( R \) passes through the centre of the dipole as shown below and another sphere 'B' of radius \( 2R \) passes through the charge \( +q \). Then the electric flux through the sphere A is