Recent content by extremcurious

Yeah, i really like this! It's really refreshing or maybe i am just saying that because i love BLUE!:D:D

Wow, it was that simple! I was thinking too much. Thanks for helping

I recently read in a book that if i am standing on the top of a moving train and i jump in the air i will land behind my original position. But if i am inside the train and i jump i will land exactly where i was originally! Is this true?? And if it is, then why does this happen?

WOW! that exactly hit the point! thanks a million for that link as well. U really helped a lot

Maybe i am being extremely dumb, but i am still very confused. The problem is that my teacher is saying that during re polarization, Na and K ions don't flow against the concentration gradient. But the word "ACTIVELY TRANSPORTED" is specifically written wherever i have checked about re...

So it is necessary in active transport that a substance MUST move against a concentration gradient?

In neurons during re-polarization ATP is used to "actively transport" Na ions out of the cell and K ions into the cell. Does this mean that the ions are flowing against their concentration gradient or the word "actively transported" is just used because ATP is used in this process?

Thanks a lot for your help! Sorry couldn't reply earlier and i know this is way to late but unforeseen problems arose. Thanks very much once again.

i could take a coil that has current passing through it and find it's field strength by substituting in the formula B=NI/L and then place the probe in the coil and find out the voltage. and then do it again for different values of I. that's what i thought but is it right??

okay,so for every hall probe of different materials the voltage will be different, keeping all other factors same??

i am confused about why DO we need to calibrate a hall probe? i mean can't we just connect it to some device that measures the voltage across the hall probe, when it's placed in a magnetic field?

i don't know! and by the way u are making me feel EXTREMELY dumb.

thanks! i understood it's working but again how do we calibrate it??

i am not able to understand what IS exactly a hall probe and how it works. also how do we calibrate a hall probe? anyone please help!