00:01
In the given question we are told that the drawing shows two long straight wire that are suspended from the ceiling.
00:06
The mass per unit length of each wire is 0 .050 kilogram per meter.
00:12
Here the length of the wire is l and the mass will be equals to l into 0 .05.
00:26
So here the wire has a length of 1 .2 meter and the currents in opposite 1 .2 meter, 15 degrees direction.
00:38
Here we have to find what is the current in the each wire.
00:42
So we can say that from the figure t t, cos theta equals to mg and t sine theta equals to f.
00:52
Dividing this we get 10 theta equals to f by mg.
00:57
So f will become mg 10 theta.
01:02
To find theta it will be equal to 15 by 2.
01:05
That is 7 .5 degrees.
01:08
Now f that is m, l into 0 .05, 9 .8 into 10, 7 .5...