00:01
Hello, in this question, the net electric force on the third charge is given to be f -net is equal to 0.
00:07
This net electric force can be expressed as f -net is equal to q3 into e -net.
00:16
Here q -3 is the charge on the third charge and e -net is the net electric field on the third charge q -3.
00:21
Since q -3 is not zero and f -net is equal to zero, we get e -net as equal to zero.
00:29
Since electric field produced by a negative charge points towards the charge, the electric fields produced by charges q1 and q2 is as shown in this field.
00:39
So the net electric field on q3 can be 0 only if q3 is located between the charges q1 and q2.
00:45
Q3 is located at point p.
00:47
A1 is the electric field due to q1 at q3.
00:51
A2 is the electric field at q3 charge position due to q2.
00:56
Since e net equals 0 we can write a1, minus e2 is equal to 0.
01:02
Even can be expressed as k, q1 divided by r1 square minus e2 can be expressed as k, q2 divided by r2 square equals 0.
01:17
R1 is the distance from q3 to q1 and r2 is the distance from q2 to q3...