A thin wire ring of radius `r` has an electric charge `q`. What will be the increment of the force stretching the wire if a point charge `q_(0)` is placed at the ring's centrre ?

A thin circular wire of radius r has a charge Q. If a point charge q is placed at the centre of the ring, then find the increase in tension in the wire.

A thin circular wire of radius r has a charge Q. If a point charge q is placed at the centre of the ring, then find the increase in tension in the wire.

A thin circular wire of radius r has a charge Q. If a point charge q is placed at the centre of the ring, then find the increase in tension in the wire.

A ring of radius R is with a uniformly distributed charge Q on it .A charge q is now placed in the centre of the ring .Find the increment in tension in the ring.

A thin conducting ring of radius R is given a charge +Q , Fig. The electric field at the center O of the ring due to the charge on the part AKB of the ring is E . The electric field at the center due to the charge on part ACDB of the ring is