A charge of #-2 C# is at the origin. How much energy would be applied to or released from a # 4 C# charge if it is moved from # (-5 ,1 ) # to #(3 ,-9 ) #?
Initial distance between the
And,final distance is
That means,distance has been increased in this process,against an attractive force between a negative charge and a positive charge,so energy has to be applied for moving against the attractive force.,and the value is