00:01
Hi, in this given problem there is a rectangular loop whose dimensions are given as 5 .0 centimeter by 8 .0 centimeter.
00:30
So it's area in mks units will be given by 5 .0 0 .0 into 10 dashed per minus 2 meter multiplied by 8 .0 into 10 dash per minus 2 meter.
00:51
Here it will come out to be 40 .0 into 10 dash the per minus 4 meter square or we can say this is 4 .0 into 10 dash the per minus 3 meter is square.
01:12
Magnetic field parallel to the plane of this rectangular loop that is having a magnitude of 0 .19 tesla and current passing through it that is 6 .2 ampere.
01:36
In the first part of the problem as the plane of loop is parallel to the magnetic field so angle between the plane of the loop and magnetic field is zero degree hence torque experienced by this loop will be given by b i n a gauce alpha where n is the number of turns in this loop so here for magnet genetic field this is 0 .19 tesla for current 6 .2 amper having a single turn 1 and area 4 .0 into 10 tish per minus 3 meter square so sign of 0 degree which will come out to be 1 hence, this torque experienced by the loop, rectangular loop, comes out to be 4 .7 into 10 -pard minus 3 newton meter, which is the answer for the first part of the problem.
03:30
Now in the second part of the problem we have to find magnetic moment associated with this rectangular loop and that magnetic moment is given as the product of number of turns in the coil with the current passing through it and with the area of the coil.
03:59
Again number of turn having a single turn current that is 6 .2 2 amper and area 4 .0 into 10 dash per minus 3 meter square...