Find the electric field at the centre of a uniformly charged semicircular ring of radius R. Linear charge density is `lamda`

Find the electric field and potential at the centre of curvature of a uniformly charged semicircular rod of radius R with a total charge Q in SI. lambda is the linear charge density.

Find the electric field at the centre of a semicircular ring if it is uniformly positive charged.

Draw the electric field vs distance (from the centre ) graph for (i) a long charged rod having linear charge density lamda gt 0 (ii) spherical shell of radius R and charge Q gt 0 .

The electric field at the centre of a uniformly charged ring is zero. What is the electric field and potential at the centre of a half ring if the charge on it be Q and its radius be R ?

An infinitely long line charge is bent in U shape as shown in figure. The semicircular part has radius R and linear charge density is lamda C//m . Using the results obtained in last two problems, calculate the electric field intensity at centre of the circle (point O)

The maximum electric field intensity on the axis of a uniformly charged ring of charge q and radius R will be

The maximum electric field intensity on the axis of a uniformly charged ring of charge q and radius R will be

Find ratio of electric at point A and B. Infinitely long uniformly charged wire with linear charge density lamda is kept along z-axis:

Electric field at centre of quarter circular ring having charge density lambda is _____

Electric field at centre of quarter circular ring having charge density lambda is _____