Determine the electric field a distance of 35cm from a point

Determine the electric field a distance of 35cm from a point charge Q1 = 5C.

Solution

Electric field strength due to a point charge,

E = k q / r^2

= (9 x 10^9) (5 x 10^-6) / (0.35^2)

= 3.67 x 10^5 N/C

charge is positively charged so field direction will be radially away from charge.