We're still discussing about Electricity and magnetism. Honestly, when I learn about this, I just remember about Tesla, a very genius guy from Serbia. Hm today we discuss about Juned's question about to intersecting wires.
Should one wires, especially the one that is horizontal or second wire affect to the first one? After discussing for an amount of time, the answer is no. Why? because the angle factor of the sistem. Because,
F=BIlsin0, so the effect is zero. That's good idea.
Finished with those explanations about Magnetism, we continued to the Light properties. We started with the simplest one, about reflection of light and then moved forward to the refraction mode.
It's nice because I can recall the information about this from my Middle Years. Some of them are about the mirror. Concave one and the convex one. I'll also remember that for concave, the size of image will be larger, virtual and upside down. (if I am not wrong :P).
And then, the equation for mirrors is:
1/d0+1/di = i/f
and for magnification, M= [di/d0]. That's what I remember from lesson today :)
God is good!
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