In a spherical distribution potential is given by $\mathbf { v } \boldsymbol { = } \mathbf { a r ^ { 2 } } \boldsymbol { + } \mathbf { b }$ ．Determine the charge present in sphere of radius R ．
In a spherical distribution potential is given by $\mathbf { v } \boldsymbol { = } \mathbf { a r ^ { 2 } } \boldsymbol { + } \mathbf { b }$ ．Determine the charge present in sphere of radius R ．