00:01
Hi, here in this given problem, both the charges are identical, having the value 5 micropoleum each, q1, 5 microculum, q2 is also 5 microculum.
00:19
The gap between them that is given in the end of the problem and that was found to be 6 cm or we can say that is 6 into 10 x to power minus 2.
00:31
Meter.
00:33
Now out of the multiple parts of this problem in the first part we have to find magnitude of force on q1 by q2 and we conclude both of them will repel each other by the same force.
00:49
So force on q2 by q1 that will be equal to force on q1 by q2 means that is the force at 1 due to 2 and this will be the force at 2 due to 1.
01:03
Hence we can say magnitude of the force on q1 by q2 that will be equal to that on q2 by q1 means f at 2 due to 1 will be equal to f at 1 due to 2 and using coularm's law that will be given by k into q1 into q2 by r square for k that is 9 into 10 to the part 9 multiplied by a q 1 5 microculum or 5 into 10 power minus 6 into q 2 means 5 into 10 to the power minus 6 that one also divided by r square means 6 into 10 to the power minus 2 square so that force will come out to be equal to 6 2 0 .5 newton one of the answer for this given problem then we have to discuss about the directions of these two forces and we have seen in the diagram that directions of the two forces are different opposite to each other directions of these two forces are opposite to each other.
02:53
Then in the next one, if q1 is repaid by q2, because both the charges are identical...