00:02
A loop of wire was bent into the shape shown below.
00:08
Two arcs connected by radial wires.
00:14
If the angle theta is in units of radians, what is the magnitude and direction of the magnetic field at point c? right? right.
00:27
So, magnetic field here, magnetic field due to arc would be given by b is equals to mu naught i by 4 pi and it is multiplied by theta.
00:47
Right? so, when you talk about this one, r1, like this is one, r1, okay, r1 radius.
00:56
So, when you talk about r1, then, i'm sorry, it should be r, right? here should be r.
01:05
Okay? so, now, for b1, you can say b1 is equals to mu naught i1 upon 4 pi r1 multiplied by theta and this is outwards.
01:28
Correct? and for b2, it is mu naught i2 upon 4 pi r2 as it is clockwise, so it should be, current should be clockwise...