Question

Please solve kr do please

Answer 1

net force on Q is zero , it means Q and q are in opposite nature .

Let Q is positive nature and q is negative nature 

Then, force between Q and Q will be repulsion, 

And force between Q and q will be attraction, 

Now, net force act on Q =net force act by q - net force act by Q on Q = 0

net force act by q on Q = net force act by Q on Q 

Answer 2

option c is the answer