If I remember correctly I got 2A, friends got 2,3,1 and some nut got 4000.overall it was pretty easy except for some of the questions that got swapped because we haven't finished ideas yet :\
for the coil question did anyone else get 6.7A something for the current?
I got 2.2Aoverall it was pretty easy except for some of the questions that got swapped because we haven't finished ideas yet :\
for the coil question did anyone else get 6.7A something for the current?
Dude how did 0.05 g become 0.005 kg ?Answer should be 1 A, or something around that. Got 10 in the exam cos I did it with with 0.05 grams instead of 0.005 kilograms lol D:
I got F..I got 2F, but I wouldn't be surprised if I was wrong that was one of the multiple choices that put me of. What did you get?
I got F..i got 3F on that one
the wire on the left applies a force of F to the left ( i think it was given)
and the wire on the right pushes it to the left at 2F
so 2+1 is 3
but i'm not completely sure either
saaame, hopefully we are rightI think I got F ?
Im not sure.
I remember a value on my calculator that was like 2.026... A. It was quite an easy question IRC.Dude how did 0.05 g become 0.005 kg ?
Edit: I'm most definite that I'm right. I don't remember if I did 2.2 or 2.02 but it was something along those lines
and I did the current moves upwards from D to C, according to the right hand motor rule ye. I also accounted that the weight force was going into the page, because that's how I interpreted the diagram.
lol no.I'm pretty sure its 1.008 or something like the guy said. You can do it by equating torque on the coil produced by the 5g weight and equating it to the torque of the coil give by t=BIAcosx. If you did it the force way like some of you did you have to divide the answer by 2 since both sides of the coil contribute to the force acting against the weight.
confirmed for scrublol no.
Funny thing is, I didn't use the torque formula. BECAUSE I read the LENGTH being the given amount. It was not told that it was a square shaped coilcan somebody explain how they got to their answer of 2.02? i swear all my working was right >.>