Question

Two point charges 3uc and 6uc are placed 20cm apart find the electric field at the centre of the line joining them?​

Answer 1

The situation is represented in the given figure. O is the mid-point of line AB.

Distance between the two charges, AB = 20 cm

∴AO = OB = 10 cm

Net electric field at point O = E

Electric field at point O caused by +3μC charge,

E1 = along OB

Where,

Answer 2

Answer:

27x 10^5 N/C

see the above picture