Semicircular ring of radius 0.5 m is uniformly charged with a total charge of `1.4 xx 10^(-9) C`. The electric field intensity at centre of this ring is :-

A semicircular ring of radius 0.5 m is uniformly charged with a total charge of 1.5 xx 10^(-9) coul. The electric potential at the centre of this ring is :

A semicircular ring of radius 0.5 m is uniformly charged with a total charge of 1.5 xx 10^(-9) coul. The electric potential at the centre of this ring is :

A thin half- ring of radiusb 20 cm is uniformly charged with a total charge of 0.7 nC . Find the magnitude of the electric field at the centre of the centre of the half-ring.

A thin half ring of radius R = 20 cm is uniformly charged with a total charge q = 0.70 nC .Find the magnitude of the electric field strength at the curvaite centre of this half-ring.

Charges q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is

Charge q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is

Charges q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is

A circular copper ring of radius r, placed in vacuum, has charge q on it. The electric field intensity at the centre of the ring is E_(1) . The electric field intensity on the axis of the ring at a distance x from its centre is E_(2) . The value of E_(2) will be maximum when x=x' What is the value of E_(1) ?