An arc of uniform charge per length

\\\\lambda

and radius

a

centered on the origin extends from

\\\\phi =(\\\\pi )/(2)

to

\\\\phi =2\\\\pi

, where

\\\\phi

is the angle relative to the

x

-axis in the

xy

-plane. A line of uniform charge per length

\\\\lambda

extends from

(0,a)

to

(\\\\infty ,a)

. Determine the electric field at the origin.\ An arc of charge

Q

and radius

a

centered on the origin extends from

\\\\phi =0

to

\\\\phi =\\\\pi

, where

\\\\phi

is the angle relative to the

x

-axis in the

xy

-plane. Determine the electric field at

(0,0,h)

.

An arc of uniform charge per length and radius a centered on the origin extends from =2 to =2, where is the angle relative to the x-axis in the xy-plane. A line of uniform charge per length extends from (0,a) to (,a). Determine the electric field at the origin. An arc of charge Q and radius a centered on the origin extends from =0 to =, where is the angle relative to the x-axis in the xy-plane. Determine the electric field at (0,0,h)