Recent content by Buzzer

I find it hard to believe that no one can help me. Maybe I should've posted this somewhere else...

Ok, but I learned to put i, j and k at the end when I did vectors... I did it again and got the same answer. Where does 2i come from? EDIT How stupid of me, I had pi/2 in my head instead of pi.

You have confused me here. I thought the question asked: \int_0 ^ \pi ((\sin t)i + (\cos t)j + (t)k) dt My answer is i + j + \frac{{\pi ^2 }}{2}k

Maybe, but that's what the question asks... This is just a guess but is it to do with the voltage being harder to reverse in an electric field than the current is in a magnetic field?

Magnetic field rather than electric... Ok here's my question. Why are magnetic fields used to deflect an electron beam rather than electric fields in television screens? I'd appreciate a substantial prod in the right direction. Feel free to give the answer though. :-p