Question

Four identical charged particles of charge 1 UC, 2 uC, 3 C and 4 uC are placed at x = 1 m, x = 2 m, x= 3 m and x = 5 m. The electric field intensity at
origin is
O 17.94 kN/C
O 24.3 kN/C
O 20.68 kN/C
O 18.88 N/C​

Answer 1

Answer:

Distance of point from the origin,   d=  

2+7

​  

=3 m

Magnitude of electric field   E=  

r  

2

KQ

Or    E=  

3  

2

9×10  

9

×0.009×10  

−6

=9 N/C

Explanation: