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so .. for the second part when we are determining the direction of the produced electricity in a generator, we need to use the force opposite to the rotational torque and then use the handrul to determine the direction?

for the last one,, taht ratio question int hat case shouldn't it be 2: 1? why is it 2:0?

hm... 1. greater understanding of our existance, where we are from, etc 2. philosophycal and religious perspective - we are in significant and we are not the center, thus changes the perspective of viewing our place in the universe as a whole 3. scientic view. knowing the features of the...

2001 hsc past paper, multiple choice question 15 don't understand explain why astraunats in orbit are weightless. for a step up transformer, voltage is being stepped up, but accordin to the laws of conservation of momentum, the energy in must be same or larger than the output, so...

damn i always lose direction say if in a motor, the current goes left to right in the conductor in the magnetic filed, the back emf would go right to left. and say we have a generator, that has exactly the same magnetic filed, would the generated electricity be in the direction of the back...

p type n type in this semiconductor material / solar cells electron flow from p to n and holes (current ) flow from n to p right? then why is it that when u connect it into a circuit, you 'd have to connect the p type to positive terminal and n type to negative terminal/ doesn't that...

now i am confused. damn i always lose direction say if in a motor, the current goes left to right in the conductor in the magnetic filed, the back emf would go right to left. and say we have a generator, that has exactly the same magnetic filed, would the generated electricity be in the...

what was the lhr and how uuse it again?

hm.......... left is negative, right is positive the coils produce a magnetic file dp the page by a right hand screw rule, to balance the magnetic deflection of the coils, we need to apply an electric iled.... into the page out of the page up the page down the page. i know u suppose to...

hm..considering how i failed so badly in th epast exams.... id' really be happy if everyone in this forum is doint some course with uai of 99 and above...... so that i don't feel that i fail so bad...... whatever i am not making sense.

time management - gantt chart communication.........

space, motors implementation astro reason? coz in the beginning of the year i did study so space i have no problem with it then as time goes i bludge more and more, for the last module never even learnt half of it.

i started to do projectiles using 3u ass wel... bad,,,,,,'

o .................

sorry, i m really confused about directions of current and voltages. can u explain?

everyone did good in macbeth except me...... so how should u do that essay though? coz i have no idea. mine is so not structured.

why is that u ned more energy to get positive charges off?

damn i lost 7 marks on silly mistakes@!!!!!!!! now i only have 110/120

so...photovoltaic......under influence of light, electron goes to conduction band and thus creates current? (do they create current or voltage?) photoelectric, just simply electron being knocked off by uv light...?

commutator allows dc and ac motors to be developed and functions. which lead to conviniences to industry productions and etc. without the development of commutator, it is impossible for the coil to rotate in one direction or it would not be effective.