Qualification > Sciences

Physics Help HERE ONLY !!

<< < (47/173) > >>

Hope:
To all those who are embaressed by resorting to Fleming's left-hand rule :p there is an alternative way!

If you notice how we play around with our fingers to get the answer haha; we're actually positioning our fingers on axes..

Fleming's left hand rule says that the third finger is the current, second finger is the magnetic field and the thumb is the force.

Now, we can simply draw axes (including x,y,z) This can be seen in my attachment.

If the magentic field is on the x-axis (denoted as B), current is on the y-axis (denoted as I), then you begin to move from I to B, through the shortest distance between both. In this case, it is clockwise. Any clockwise rotation corresponds to a negative axis. And since the z-axis is the only one that has not been given, it must be on the negative z-axis. In other words, the force is into the page!

I hope I made this as simple as possible. :)

Hope:
I also forgot to mention that any anticlockwise rotation corresponds to a positive axis.

MaNa:
anyone has old pass papers for physics paper 3 n 1??
from 1993-2002
if so can some one send me on teenangel_MK@hotmail.com
thankyou

esso:
i want to ask a question....
solids which have high specific heat capacity....do they get warm rapidly or take more time to heat up????
nd why???

thanx in advance

astarmathsandphysics:
They take more time to heat up since you have tyo put more heat in to raise the temperature

Navigation

[0] Message Index

[#] Next page

[*] Previous page