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Hey guys
I'm a new member and I will be mostly asking questions :P
Anyways ...
Physics subjects in my school are about electricity now and my teachers aren't very good, so I can't clearly understand what they're saying.
To get to the bottom line, our lesson was about electrons and electricity.
I understand that when I rub a ruler on my hair - for example - it would be charged and therefore it can attract scraps of paper.
My questions are :
1.Where do electrones go in the ruler ?
2.Free electrones that conduct electricity, does the atom need them ? if not then why did the atom take them in the first place ?
3.Non-conductive materials such as wood, as I understood they don't conduct electricity because their atoms need to be filled with electrones so they can be stable, is that right ? If so, are atoms in the Non-conductive materials unstable ? and shouldn't they after awhile of charging they will be full and will therefore conduct electricity ?
4.Some materials when rubbed will get positive charges and some will get negative, why ?
5.After charging a ruler it would attract for a few minutes then it will stop, why ?
Could someone please explain everything to me ?
Thanks.
I'm a new member and I will be mostly asking questions :P
Anyways ...
Physics subjects in my school are about electricity now and my teachers aren't very good, so I can't clearly understand what they're saying.
To get to the bottom line, our lesson was about electrons and electricity.
I understand that when I rub a ruler on my hair - for example - it would be charged and therefore it can attract scraps of paper.
My questions are :
1.Where do electrones go in the ruler ?
2.Free electrones that conduct electricity, does the atom need them ? if not then why did the atom take them in the first place ?
3.Non-conductive materials such as wood, as I understood they don't conduct electricity because their atoms need to be filled with electrones so they can be stable, is that right ? If so, are atoms in the Non-conductive materials unstable ? and shouldn't they after awhile of charging they will be full and will therefore conduct electricity ?
4.Some materials when rubbed will get positive charges and some will get negative, why ?
5.After charging a ruler it would attract for a few minutes then it will stop, why ?
Could someone please explain everything to me ?
Thanks.