write a good essay
and any one know about the flemin right hand law in science physic?can teach me how use in(like how apply to a Qs, i nv see it and my physic teacher is lousy,everytime i wan find him he alwasy not in school one)
write good essays? go read model essays and try to emulate them. its also good to borrow some of your friend's essays(but make sure theirs get high marks) and read through and pick up some pointers from them. very important thing is that you have to THINK before you write anything. plan your essay well, flaunt your vocab!
Try this for Right Hand Law
http://www.physics.ubc.ca/~outreach/phys420/p420_96/reg/rhr_lor.htm
Or are you talking about the x,y,z axis directions?
Hi TS,
Are you sec 3 or sec 4 this year?
For Fleming's Left Hand Rule, use this acronym to help u remember
FBI
where F is force (thumb)
B is magnetic field (index finger)
and I is current (middle finger)
Remember to use it only for induced force, not current! Fleming's right hand rule is out of combined science syllabus I think; that is used for induced current.
So always remember, Fleming's Left Hand Rule is always used for induced force. There must be current, there must be a magnetic field. Most importantly, the force and the current must be in perpendicular directions to each other. If they are parallel, then there's zero induced force.
Also, the direction of the induced force is perpendicular to both the current and the magnetic field (check your Fleming's Left Hand Rule)....
For other questions (or help) in Physics, do visit ExamWorld. The physics posted there is for both science and pure physics. For science physics, concentrate more on the explanations then on the calculations, of which some might be out of your syllabus as well.
Regards,
Eagle (ExamWorld)
Oh ya... For Fleming's right hand rule, it is used for induced current. Means if you move a magnet (force) perpendicular to a magnetic field, there will be an induced current. The direction of the current can be found from Fleming's right hand rule.
In short,
Fleming right hand rule => used to find direction of induced current.
Fleming left hand rule => used to find direction of induced force
thanks but nope u are wrong
it's flemin lhr that is out not the rhr
Originally posted by Ah sian:thanks but nope u are wrong
it's flemin lhr that is out not the rhr
hmmm... dun think they changed it yet right...? I have a sci phy tuition student right now taking O levels this year... You don't learn how to find the induced current right? Finding induced current is rhr. Finding induced force is lhr.
Maybe u could try reading the following for a clearer picture :D
http://en.wikipedia.org/wiki/Fleming%27s_left_hand_rule
http://en.wikipedia.org/wiki/Fleming%27s_right_hand_rule
i dont know my teacher just told me to learn rhl
if im not wrong lhr is for sec 5
hmmm... I go check out if it's in syllabus when I'm free
Just finished revamping ExamWorld from 2 columns to 3 columns :D
Damn tedious to program...
rhr is also from fleming(if im not wrong). lhr and rhr are from the same guy but used to find different things