Question

Two charges-5 and +10 PC are placed 20 cm apart. The
potential energy of the system is​

Answer 1

Answer:

Let the two charges placed at two points of line AB as A and B whose  distance is 20 cm and O is the mid point of the line AB

Distance between the two charges , AB=20 cm

∴AO=OB

Net elctric at O=E

Electric field at point O caused by +5\mu C charge,

E1=4πε0(AO)25×10−6

      =4πε0(10×10−2)25×10−6 N/C toward +5μC

where,

ε0=Permittivity of free space

4πε1=9×109Nm2C−2

Magnitude of electric field at point O cause by +10\mu C charge,